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Relay
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Patent number 9,905,386
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Issue date Feb 27, 2018
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LSIS Co., Ltd.
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Sanghee Park
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H01 - BASIC ELECTRIC ELEMENTS
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Switch apparatus
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Patent number 5,952,629
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Issue date Sep 14, 1999
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Yamaha Corporation
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Kenichi Yoshinaga
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G10 - MUSICAL INSTRUMENTS ACOUSTICS
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Membrane keyboards
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Patent number 4,920,237
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Issue date Apr 24, 1990
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International Business Machines Corporation
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Richard A. Eardley
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H01 - BASIC ELECTRIC ELEMENTS
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Printed circuit board
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Patent number 4,803,315
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Issue date Feb 7, 1989
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Brother Kogyo Kabushiki Kaisha
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Mitsumasa Kako
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H03 - BASIC ELECTRONIC CIRCUITRY
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Push-button switch
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Patent number 4,349,712
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Issue date Sep 14, 1982
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ITT Industries, Inc.
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Dieter Michalski
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H01 - BASIC ELECTRIC ELEMENTS
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Pressure transducer
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Patent number 4,314,228
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Issue date Feb 2, 1982
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Franklin N. Eventoff
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H01 - BASIC ELECTRIC ELEMENTS
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Push-button switches
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Patent number 4,289,943
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Issue date Sep 15, 1981
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Shin-Etsu Polymer Co., Ltd.
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Ryoichi Sado
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H01 - BASIC ELECTRIC ELEMENTS
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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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Electrical switch assembly
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Patent number 4,156,802
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Issue date May 29, 1979
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Telaris Telecommunications, Inc.
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Michael N. Gilano
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H01 - BASIC ELECTRIC ELEMENTS
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