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Switch assembly
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Issue date May 1, 1990
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Motorola, Inc.
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Dale W. Dorinski
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H01 - BASIC ELECTRIC ELEMENTS
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Illuminated keyboard apparatus
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Patent number 4,288,672
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Issue date Sep 8, 1981
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Texas Instruments Incorporated
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Richard E. Puccini
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H01 - BASIC ELECTRIC ELEMENTS
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Pushbutton keyboard system
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Patent number 4,163,125
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Issue date Jul 31, 1979
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Texas Instruments Incorporated
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Henry J. Boulanger
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G06 - COMPUTING CALCULATING COUNTING
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Patent number 3,858,202
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Issue date Dec 31, 1974
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G06 - COMPUTING CALCULATING COUNTING
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Issue date Oct 8, 1974
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G06 - COMPUTING CALCULATING COUNTING
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3808384
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Patent number 3,808,384
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G06 - COMPUTING CALCULATING COUNTING
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3725907
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Patent number 3,725,907
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Issue date Apr 3, 1973
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3707609
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Patent number 3,707,609
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Issue date Dec 26, 1972
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H01 - BASIC ELECTRIC ELEMENTS