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US4071932A
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Method of making electron guns for cathode ray tubes and the like
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CA983990A
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Cathode ray tube construction
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Cathode ray tube construction
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Multi-beam cathode ray tube construction
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Electron gun construction for multi-beam color cathode ray tube
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Single gun, multi-screen, multi-beam, multi-color cathode ray tube
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Automatic sedimentation rate recorder
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Automatic sedimentation rate recorder
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Automatic blood sedimentation rate recorder
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Changeable storage device for storing program representing patterns of connections
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CA727754A
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Data storage system
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