GB1215975A
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Bistable trigger circuit
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US3114502A
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Mechanism for re-setting the pins in the pin box of a calculating and bookkeeping machine
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DE1047493B
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Printed matter with punctuation marks
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DE1067620B
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Setting mechanism for ten key calculators
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DE1004401B
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Printing unit for typewriters
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DE1021600B
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Setting mechanism on a ten-key calculator
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DE1117329B
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Automatic return device
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DE1021606B
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Speed control device for printing four-species calculating machine
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DE1091782B
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Device for carrying out division calculations on hand-operated Sprossenwheel calculating machines
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US2746385A
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Type bars for calculating and bookkeeping machines
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DE1030590B
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Type bar for calculating and accounting machines
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US2682371A
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Pin carriage shifting mechanism for ten-key multiplying machines
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DE860421C
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Balancing device on calculating machines
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DE834914C
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Adjustment device for the type lever on calculating machines
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DE846315C
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Downshift device on calculating machines
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US2561646A
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Setting device for the type levers in calculating machines
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FR930119A
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Ten key calculator
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