| http://www.w3.org/ns/prov#value | - Aug 4, 1982Oct 25, 1983Matsushita Electric Industrial Co., Ltd.Dust venting contact with a non-circular holeUS4916275 *Apr 13, 1988Apr 10, 1990Square D CompanyTactile membrane switch assemblyUS5001308 *Apr 28, 1988Mar 19, 1991Alps Electric Co., Ltd.Membrane switchUS5136131 *Sep 24, 1990Aug 4, 1992Sharp Kabushiki KaishaPush-button switch including a sheet provided with a plurality of domed membersU
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