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US2830688A
|
|
Power actuated typing mechanism for business machines
|
|
US2644566A
|
|
Line locking and margin releasing mechanism for typewriting machines
|
|
US2631713A
|
|
Case shift mechanism for typewriting machines
|
|
US2662629A
|
|
Page end indicator for typewriters
|
|
US2660285A
|
|
Typewriter key touch controlling means
|
|
US2633223A
|
|
Silent key mechanism for typewriters
|
|
US2624439A
|
|
Key touch regulating mechanism for typewriting machines
|
|
US2599537A
|
|
Adjustable margin regulating means for typing machines
|
|
US2599535A
|
|
Line spacing mechanism for typing machines
|
|
US2649179A
|
|
Carriage feeding escapement mechanism
|
|
US2545133A
|
|
Typewriter and like separably interfitted stem and molded cap keys
|
|
US2509684A
|
|
Paper web supporting and feeding means for recording machines
|
|
US2555728A
|
|
Paper supporting, feeding, and severing means for calculating and the like machines
|
|
GB598027A
|
|
Improvements in duplicating machines
|
|
GB600333A
|
|
Improvements in duplicating machines
|
|
US2478630A
|
|
Power-operated printing machine
|
|
GB601603A
|
|
Improvements in printing machines
|
|
GB586050A
|
|
Improvements in sheet feeding apparatus for printing and like machines
|
|
US2387785A
|
|
Typewriting machine
|
|
US2371083A
|
|
Typewriting machine
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