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GB956690A
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Ribbon vibrator mechanism for typewriters
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GB955572A
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Ribbon spool cover suspension mechanism for typewriters and like office machines
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US3072238A
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Program unit
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US3081015A
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Fan-fold card guide
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US3095078A
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Paper bail construction and mounting
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US3093355A
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Machine support structure
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GB945607A
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Improvements in receiving apparatus with electronic selector and controller with storage system
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GB945606A
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Ink ribbon feed and reverse mechanism
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US3064079A
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Tape reader
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US3062351A
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Quick-change ribbon mechanism
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US3071730A
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Switching system for selectively ionizing gas tubes by radio frequency energy under control of moveable blocking shield
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US2912162A
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Square root extracting circuit arrangements
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US2973981A
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Adjustable fasteners
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US3047731A
|
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Magnetic core circuit
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US3051377A
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Perforator
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US2896767A
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Spacing mechanism for power operated typewriter
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US3016579A
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Method of molding indicia wheels
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US2896766A
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Typewriter case shift mechanism
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US2901079A
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Typewriter having power operated instrumentalities
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US2921660A
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Power driving mechanism for instrumentalities of typewriters
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