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DE692789C
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Stellstueckwagen
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DE707259C
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Printing unit for high-speed calculating machines
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DE686421C
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Aperture counter for typewriters
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DE650687C
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Controlled reverse lock
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DE666678C
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Counter with lower zero aperture
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DE698103C
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Character printing device for calculating machines
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DE627586C
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Elevator of ten ratchets
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DE614955C
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Ten circuit
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DE613873C
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Controlled reverse lock
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DE722917C
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Control for counters
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DE616365C
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Blocking of the filling bars for adding machines
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DE612424C
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Complementary counter for typewriters
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DE517365C
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Vertical arithmetic unit with billing device for typewriters
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DE507842C
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Holding device for the transverse counters on typewriters
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DE487470C
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Double presetting device on counters for typewriters
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DE475390C
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Control device for adding machines
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DE470337C
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Keyboard for calculating machines
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DE477000C
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Typewriter with automatic blank control
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DE472983C
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Typewriter
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DE628972C
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Display device on calculating machines
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