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Control panel face
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Patent number 4,942,275
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Issue date Jul 17, 1990
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ESI Companies, Inc.
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Timothy E. Addy
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H01 - BASIC ELECTRIC ELEMENTS
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Illuminated membrane switch
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Patent number 4,551,598
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Issue date Nov 5, 1985
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Stewart-Warner Corporation
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Lawrence E. Hamilton
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H01 - BASIC ELECTRIC ELEMENTS
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Illuminated membrane switch
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Patent number 4,493,958
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Issue date Jan 15, 1985
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Stewart-Warner Corporation
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Lawrence E. Hamilton
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H01 - BASIC ELECTRIC ELEMENTS
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Keyboard switch assembly
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Patent number 4,439,646
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Issue date Mar 27, 1984
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Societe de Telecommunications Electronique Aeronautique et Maritime T.E.A.M.
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Andre M. Bouvrande
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H01 - BASIC ELECTRIC ELEMENTS