US1292971A
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Type-guard.
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US1293245A
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Paper-feed control for calculating-machines.
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US1294847A
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Tabulating mechanism.
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US1294726A
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Carriage-return mechanism.
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US1294725A
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Locking attachment for calculating-machines.
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US1294196A
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Printing-mechanism.
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US1259930A
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Tabulating mechanism for combined adding and type-writing machines.
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US1256077A
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Ribbon-vibrating mechanism.
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US1256076A
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Carriage mechanism for writing-machines.
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US1283596A
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Platen-operating mechanism.
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US1292537A
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Calculating-machine.
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US1259929A
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Tabulating mechanism for calculating-machines.
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US1283597A
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Error-key for calculating-machines.
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US1253299A
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Mount for key-bars.
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US1293981A
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Calculating-machine.
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US1301335A
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Type-writing machine.
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US1245637A
|
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Ribbon-reversing mechanism.
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US1288288A
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Tally-roll attachment for calculating-machines.
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US1204612A
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Back-spacing mechanism.
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US1206271A
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Paper-support for writing-machines.
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