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DE419313C
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Counting disk for counters, calculating machines, etc. like
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DE404887C
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Zero setting device for calculating machines
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DE398176C
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Single tooth for counters
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DE393955C
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Switching device on calculating machines for decade-by-decade shifting of the counter slide
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DE387605C
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Device for parking the printing unit on calculating machines with setting disks with variable number of teeth
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DE390459C
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Device for returning a value from a counter arranged in a slide into the setting mechanism that drives this movement
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DE387025C
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Calculating machine with a revolution counter whose counting disks have two rows of digits covered by a sliding peephole
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DE386578C
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Counting disk for counters, calculating machines, etc. like
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DE378838C
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Locking device for pivoting counters on calculators and. like
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DE377424C
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Locking device to secure the slide against shifting on calculating machines with a movable counter slide
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DE383722C
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Device for turning off spring locks on calculating machines u. like
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