Who holds patents awarded in the 1950s for automatic video scanning and inspection methods,?
Who holds patents awarded in the 1950s for automatic video scanning and inspection methods, which led to bar code technology?
Nobody holds them anymore — patents only last for 20 years at most, so any patents awarded in the 1950s would have expired in the 1970s or sooner.
Strouse Plumbing runs Gen-Eye video pipe inspection
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Pro-Dentec Prism Intra-Oral Light Source+Video Imaging Dental Inspection Camera $199.99 |
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200x Magnifying Video Camera Microscope Inspection Exam Cam Medical Examination $246.05 |
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1000 FT of PEARPOINT 402/00 CCTV VIDEO MAINLINE SEWER INSPECTION CABLE $2,295.00 |
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New Handheld Video Snake Waterproof Inspection Camera wih 2.4″ Color LCD Monitor $84.99 |
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200x Magnifying Video Camera Microscope Inspection Exam Cam Medical Examination $246.05 |
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Hot 7M Waterproof Snake Endoscope USB Borescope Inspection Digital Video Camera $32.85 |
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Wireless 3.5″ Video USB Color Endoscope Borescope Inspection Camera 5.5mm 1M TF $198.99 |
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Wireless 3.5″ Video USB Endoscope Inspection CMOS Camera 5.5mm 3M tube Night IR $298.85 |
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USB Video Inspection Borescope Endoscope Pipe 7mm Waterproof Camera Snake Scope $48.90 |
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USB Video Inspection Borescope Endoscope Pipe 7mm Waterproof Camera Snake Scope $38.90 |
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Portable USB Video Inspection Borescope Endoscope 7mm Camera 6 LED Snake Scope $38.90 |
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Handheld USB Video Inspection Borescope Endoscope 7mm Camera 6 LED Snake Scope $38.90 |
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2.4 Camera Video Inspection Snake Scope Endoscope 4M Cable Borescope USB SD Card $167.50 |
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DIGITAL INSPECTION CAMERA REAL-TIME VIDEO TADD $34.00 |
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US Black 7M USB Waterproof Home Endoscope Snake Inspection Pipe Video Camera $33.31 |
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15M USB Video Snake Endoscope USB Pipe Inspection Camera 45ft 4 LED Waterproof $39.99 |
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2.4″ LCD Video Inspection Snake Scope Camera Borescope Endoscope 9mm Probe 4 LED $95.50 |
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Wafer inspection Olympus video microscope XYZ NEAT stage Complete System L@@K $9,400.00 |
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USB Video Inspection 6 LED Borescope Endoscope 7mm Waterproof Camera Snake Scope $38.70 |
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2.4 Digital Video Inspection Borescope 1m Endoscope Pipe 10mm Camera Snake Scope $77.90 |
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Wireless 3.5″ Video USB Endoscope Scopy Inspection sewer Camera 5.5mm 3M Tube $285.59 |
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Video Inspection Snake Scope 2M Camera Borescope Endoscope 9mm Probe 4 LED light $118.50 |
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35M Drain Inspection MONITOR video snake DVR AUDIO MIC $699.00 |
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Pipe Car Video Inspection Borescope Endoscope 2.4LCD 10mm Camera TV 4M Cable $126.90 |
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USB Endoscope Inspection Snake Scope Video Borescope Camera $37.00 |
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USB Video Inspection 6 LED Borescope Endoscope 7mm Waterproof Camera Snake Scope $47.90 |
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2.4 Video Inspection Camera Pipe Borescope Endoscope TV $95.80 |
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2.4″ LCD Video Inspection 7M Cable Borescope Endoscope Camera TV Out 10mm Camera $154.00 |
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Borescope Endoscope 2.4″ LCD Video Inspection Camera Snake Scope 12mm Camera $77.90 |
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3.5″ LCD Video Inspection Tube 12mm Camera Borescope Endoscope Scope LED Light $107.00 |
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3.5″ LCD Video Inspection Tube 12mm Camera Borescope Endoscope Scope LED Light $107.00 |
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2.4″ LCD Inspection 2M Tube Camera Borescope Endoscope Scope Video Zoom Rotate $105.50 |
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2.4″ Waterproof Video Inspection Borescope 1m Endoscope 10mm Camera Snake Scope $87.50 |
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3.5″ LCD Inspection 2M Tube Camera Borescope Endoscope Scope Video Zoom Rotate $123.90 |
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A Porsche 356 Close-up (inspection video) [VHS] $38.00 The legend of the Porsche 356 gets stronger each year. Many people would like to purchase this legendary Porsche but are concerned about the risks. Driven by Design used their expertise with these cars and developed inspection videos for the Porsche 356. The cars are reviewed methodically in an organized step by step format. You see how to actually make an inspection that will separate the good … |
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Vehicle Inspections: A School Bus Driver’s Video Series III [VHS] … |
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W.I.S.O.R.: Wielding & Inspection Steam Operations Robot [VHS] $19.95 … |
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Black & Decker TLD100 Thermal Leak Detector $23.99 The Black & Decker thermal leak detector helps you increase the efficiency of your home’s insulation by finding leaky areas that can lead to higher heating and cooling bills. You’ll instantly identify problem areas around drafty windows and doors, and uncover hidden leaks and insulation “soft spots” around your home. Check windows, ducts, and walls with the thermal reference light that indicates h… |