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Universal modular printed circuit magnetic reed keyboard switch assembly
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Digitally operable magnetic reed switches
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Paper tape puncher
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Precision magnetic switch, especially for keyboard
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Photoelectric punched paper tape reader rejecting diffused light rays
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Tape programmed machine tool control system
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Typewriter key lever and mount therefor
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Sloping panel keyboard mount
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High speed impact print hammer assembly with resilient energy storing means
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Binary coding-decoding circuits
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High speed electronic keyboard assembly
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Sheet-handling apparatus
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Information processing device
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Data handling process, apparatus and record document
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Device for advancing the tape of a digital recorder
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Fast scan paper tape punch-readers and control systems therefor
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Paper tape punch
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Precision magnetic keyboard switch
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Asynchronous paper tape reader
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Electronic typewriter adaptable to electronic data processing machines
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