US5531429A
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Variable printing and selective binding of booklets
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CA2132151A1
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Scanner cleaning sheet
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GB9710880D0
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Checking accuracy of a test marker
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US5420407A
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Adjustable read level threshold for optical mark scanning
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US5437554A
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System for providing performance feedback to test resolvers
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US5433615A
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Categorized test item reporting system
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US5321611A
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Multiple test scoring system
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US5262624A
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Opposite surface scanning of a mark sense form
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CA2074562A1
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Opposite side scanning of a mark sense form
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US5184003A
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Scannable form having a control mark column with encoded data marks
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EP0481515A2
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Illumination system for scanner
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US5262943A
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System and process for information management and reporting
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EP0463471A2
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Image processing system for documentary data
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US5195738A
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Single sheet picking and transport mechanism
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AU6915391A
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Scannable form having a control mark column with encoded data marks
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EP0405466A1
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Single sheet picking and transport mechanism
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US5103490A
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Method and apparatus for storing and merging multiple optically scanned images
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US5086215A
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Method and apparatus for discriminating or locating bar codes for an optical mark reader
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US4937439A
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Method and system for creating and scanning a customized survey form
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US4934684A
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Sheet picking mechanism
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