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Capacitive keyswitch
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Patent number 4,417,294
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Issue date Nov 22, 1983
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Illinois Tool Works Inc.
-
John R. Herron
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H03 - BASIC ELECTRONIC CIRCUITRY
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Miniature audio connector
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Patent number 4,361,375
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Issue date Nov 30, 1982
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Switchcraft, Inc.
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James R. Bailey
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H01 - BASIC ELECTRIC ELEMENTS
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Miniature audio connector
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Patent number 4,316,647
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Issue date Feb 23, 1982
-
Switchcraft, Inc.
-
James R. Bailey
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H01 - BASIC ELECTRIC ELEMENTS