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US3390608A
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System for computer generated disseminable indexes
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US3411844A
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Projection apparatus for superposing a readout grid on data film images
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US3383997A
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Compatible system for enlargement of peekaboo data card capacity
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US3484588A
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Plane type line scanner for universal information system
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US3353441A
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Superimposable card system based on novel records
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US3289500A
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Drilling machine with an indexable drill head
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US3335283A
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Versatile information storage and retrieval system including photocell scanning
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US3244067A
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Optical retrieval apparatus of the peekaboo type
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US3222786A
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Reader for superimposable card system
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US3192801A
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Pivotable and indexable arm drill
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US3247362A
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Scanner for superimposed card information retrieval system
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US3240114A
|
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Information storage and retrieval copy apparatus
|
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US3209643A
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Apparatus for accurately registering superimposed films
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US3156137A
|
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Superimposable card system with template and guided drill
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US3171021A
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Printing of superimposable card systems
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US3133786A
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Flying spot data input or readout for superimposable card information retrieval system
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US3246169A
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Electronic logical sum, product and negation device for superimposable card system
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US3340385A
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Hole counter for superimposable card search system, based on the use of balls
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US3162468A
|
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Integration of superimposable cards
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US3211072A
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Geometric print-out for superimposable card systems
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