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US1105396A
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Signaling device for calculating-machines.
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CA142955A
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Calculating machine
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US1041231A
|
|
Means for the transmission of tens in thomas calculating-machines.
|
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CA138507A
|
|
Adding machine
|
|
CA138506A
|
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Calculating mechanism
|
|
CA138505A
|
|
Calculating machine
|
|
US1096012A
|
|
Adding-machine provided with chain drive.
|
|
US1055856A
|
|
Calculating-machine.
|
|
US1050093A
|
|
Adjusting device for paper-carriages of calculating-machines.
|
|
US1041576A
|
|
Calculating-machine with printing device.
|
|
CA138503A
|
|
Calculating machine
|
|
CA136245A
|
|
Calculating machine
|
|
US1013981A
|
|
Device for adjusting slides in calculating-machines.
|
|
GB191108709A
|
|
Improvements relating to Calculating Machines.
|
|
US988069A
|
|
Stepped roller for thomas calculating-machines.
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