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US1058810A
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Combined adding and type-writing machine.
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US982606A
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Adding type-writer.
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US948862A
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Carrying mechanism for adders.
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US961073A
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Adding type-writer.
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US932786A
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Adding type-writer.
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US896825A
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Ribbon-reversing mechanism.
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US1037521A
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Combined type-writing and adding machine.
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US778595A
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Combined type-writing and adding machine.
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US847166A
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Paper-feeding mechanism.
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US849055A
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Type-writer carriage.
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US913362A
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Stop device for type-writers.
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US988979A
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Type-bar operating mechanism.
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US932763A
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Tabulator.
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US896803A
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Ribbon-feed mechanism for type-writing machines.
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US879854A
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Power driving mechanism for computing type-writers.
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