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Keyboard
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Patent number 9,318,282
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Issue date Apr 19, 2016
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Fujitsu Component Limited
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Takashi Nakajima
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H01 - BASIC ELECTRIC ELEMENTS
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Thin keyboard structure
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Patent number 8,957,333
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Issue date Feb 17, 2015
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Zippy Technology Corp.
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Chin-Wen Chou
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H01 - BASIC ELECTRIC ELEMENTS
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Portable terminal having keypad
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Patent number 8,917,192
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Issue date Dec 23, 2014
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Samsung Electronics Co., Ltd.
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Seung-Chul Choi
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H04 - ELECTRIC COMMUNICATION TECHNIQUE
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Electrical switch
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Patent number 8,907,233
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Issue date Dec 9, 2014
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Defond Components Limited
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Wilson Wai Cheong Chu
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H01 - BASIC ELECTRIC ELEMENTS
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Keyboard dome overlay structure
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Patent number 8,258,418
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Issue date Sep 4, 2012
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Research In Motion Limited
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Chao Chen
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B29 - WORKING OF PLASTICS WORKING OF SUBSTANCES IN A PLASTIC STATE, IN GENERAL
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Keyboard with replaceable keys
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Patent number 8,253,047
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Issue date Aug 28, 2012
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Fu Tai Hua Industry (Shenzhen) Co., Ltd.
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Man-Tian Liu
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H01 - BASIC ELECTRIC ELEMENTS
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Electronic device with two keypads
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Patent number 8,089,010
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Issue date Jan 3, 2012
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Hong Fu Jin Precision Industry (ShenZhen) Co., Ltd.
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Song-Ling Yang
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H04 - ELECTRIC COMMUNICATION TECHNIQUE
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Key input device
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Patent number 7,999,420
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Issue date Aug 16, 2011
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Funai Electric Co., Ltd.
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Toshiya Iwahashi
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H03 - BASIC ELECTRONIC CIRCUITRY
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Programming apparatus
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Patent number 4,032,753
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Issue date Jun 28, 1977
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Stanley J. Lieberman
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G06 - COMPUTING CALCULATING COUNTING
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3680082
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Patent number 3,680,082
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Issue date Jul 25, 1972
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G06 - COMPUTING CALCULATING COUNTING
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3439118
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Patent number 3,439,118
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Issue date Apr 15, 1969
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B41 - PRINTING LINING MACHINES TYPEWRITERS STAMPS
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3430226
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Patent number 3,430,226
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Issue date Feb 25, 1969
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H01 - BASIC ELECTRIC ELEMENTS
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3369643
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Patent number 3,369,643
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Issue date Feb 20, 1968
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H03 - BASIC ELECTRONIC CIRCUITRY
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3365555
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Patent number 3,365,555
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Issue date Jan 23, 1968
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H02 - GENERATION CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
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3189153
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Patent number 3,189,153
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Issue date Jun 15, 1965
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H01 - BASIC ELECTRIC ELEMENTS