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Treadle assembly
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Patent number 4,963,705
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Issue date Oct 16, 1990
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Chomerics, Inc.
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John Broderick
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G08 - SIGNALLING
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Keyboard
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Patent number 4,264,477
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Issue date Apr 28, 1981
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Chomerics, Inc.
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Richard E. Seeger
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H01 - BASIC ELECTRIC ELEMENTS
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Isolated paths connector
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Patent number 4,065,197
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Issue date Dec 27, 1977
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Chomerics, Inc.
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Charles H. Kuist
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H01 - BASIC ELECTRIC ELEMENTS
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