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US3168241A
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Locking and releasing mechanism for function controlling keys of calculating machines
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US3157353A
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Calculating machines
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GB928957A
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An improved method for manufacturing compound press tools
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US3129612A
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Manufacturing compound press tools
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FR1280364A
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Advanced process for the manufacture of combination press tools
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ES241005A1
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Improvements introduced in the calculating machines (Machine-translation by Google Translate, not legally binding)
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US2907518A
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Zeroizing mechanism for calculating machines of the pinwheel type
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ES231329A1
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A calculating machine of type of ten keys (Machine-translation by Google Translate, not legally binding)
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GB760883A
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Improvements in calculating machines
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ES217767A1
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A device in calculating machines (Machine-translation by Google Translate, not legally binding)
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ES215259A1
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A device in calculating machines (Machine-translation by Google Translate, not legally binding)
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ES205679A1
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A device for transfer of the tens for calculating and similar machines. (Machine-translation by Google Translate, not legally binding)
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US2744686A
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Tens transfer device for calculating machines and the like
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CA569021A
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Calculating machines
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CA663191A
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Keyboards for power operated calculating machines
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CA645974A
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Clearing mechanism for calculating machines
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CA514511A
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Tens transfer mechanism for products and quotient registers in calculating machines and the like
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CA592008A
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Zeroizing mechanism for calculating machine of the pinwheel type
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CA509863A
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Clearing device in calculating machines
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CA578182A
|
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Calculating machines
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