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1964-06-10 |
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Boeing Co |
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1965-03-11 |
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1967-04-24 |
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1971-05-18 |
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Flex Key Corp |
Keyboard, digital coding, switch for digital logic, and low power detector switches
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1972-08-18 |
1978-05-18 |
Matsushita Electric Industrial Co., Ltd., Kadoma, Osaka (Japan) |
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Dynacon Industries, Inc. |
Pressure sensitive resistance and process of making same
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Mohawk Data Sciences Corporation |
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Membrane keyboard apparatus having common apertured electrode, aperture inserted electrodes and conductive bubble contactors
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1975-06-30 |
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Lake Center Industries |
Pressure sensitive matrix switch having apertured spacer with flexible double sided adhesive intermediate and channels optionally interposed between apertures
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Globe-Union Inc. |
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