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US1012698A
|
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Adding-machine dash-pot mechanism.
|
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US976390A
|
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Motor-driven adding-machine.
|
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US886747A
|
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Ribbon-controlling mechanism for adding-machines.
|
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US938532A
|
|
Actuating mechanism for adding-machines.
|
|
US1038660A
|
|
Ribbon-spool for adding-machines.
|
|
US1180556A
|
|
Cipher cut-out for adding-machines.
|
|
US1127332A
|
|
Selective cipher cut-out for adding-machines.
|
|
US895523A
|
|
Adding-tabulator.
|
|
US853543A
|
|
Tabulating-machine.
|
|
US889671A
|
|
Total-printing mechanism for listing-machines.
|
|
US780273A
|
|
Tabulating-machine.
|
|
US711487A
|
|
Tabulating-machine.
|
|
US780272A
|
|
Tabulating-machine.
|
|
US780271A
|
|
Combined tabulating and writing machine.
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