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Recording/reproducing system using phase encoding of optical storage medium
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Rf modulated optical beam distance measuring system and method
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Optical recording/reproducing system using interference techniques
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Playing card holder and dispenser
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Neutron flux intensity detection
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Multichannel pulse-height analyzer
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Machine for manufacturing envelops.
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Opener for envelops or wrappers.
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Opener for envelops or wrappers.
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Playing card holder and dispenser
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