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CA113907A
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Adding machinery
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US940758A
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Adding-machine.
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US814751A
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Crank-arm sleeve-bearing.
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CA95007A
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Adding mechanism
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CA95164A
|
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Adding mechanism
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GB190514116A
|
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Improvements in and relating to Adding Machines.
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GB190514115A
|
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Improvements in and relating to Adding Machines.
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|
CA90237A
|
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Adding machine
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GB190417306A
|
|
Improvements in and relating to Machines for Adding and Registering.
|
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US796024A
|
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Inking mechanism for adding-machines.
|
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US796617A
|
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Ribbon-feeding mechanism for adding-machines.
|
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US795378A
|
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Carrying mechanism for adding-machines.
|
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CA85052A
|
|
Adding mechanism
|
|
CA85079A
|
|
Multiplying mecahnism for adding machines
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CA85051A
|
|
Adding mechanism
|
|
CA85050A
|
|
Adding machine
|
|
CA85080A
|
|
Carrying mechanism for adding machines
|
|
US745543A
|
|
Zero-resetting mechanism for adding-machines.
|
|
GB190221178A
|
|
Improvements in and relating to Adding Machines.
|
|
US745540A
|
|
Correcting mechanism for adding-machines.
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