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DE2505588A1
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Automatic character recognition and processing circuit - has digitiser with binary coded decimal outputs
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US3847346A
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Data field recognition and reading method and system
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US3852573A
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Alignment correction for read scan raster fields
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DE2350474A1
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Identification of objects carrying stickers on one surface - involves scanning with video camera and processing its signals
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FR2226082A5
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Merchandise label for machine reading - comprises a series of machine readable characters and orientation lines
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US3873973A
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Self-correcting reading of contrast information
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DE2307481A1
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DEVICE FOR READING INFORMATION IN A DATA FIELD
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US3868634A
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Reading of contrasting data by means of continuously attempting to decode read signals
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US3842200A
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Contrast processing of video signals with self-adjusting reference
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US3801775A
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Method and apparatus for identifying objects
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US3800282A
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Code reading system
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US3701098A
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Device for machine reading of information without manipulation of the information carrier
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AU1342970A
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Code reading system
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US3632993A
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Color code system
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US3600556A
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Apparatus for machine reading randomly positioned and oriented information
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GB1219251A
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Apparatus for the mechanical reading of information
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CA906649A
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Device for machine reading of information
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CA911040A
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Code reading system
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CA886745A
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Apparatus for machine reading randomly positioned and oriented information
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