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Zitiert von PatentEingetragenAusgestelltUrsprünglich Bevollmächtigter Titel
US394195323. Aug. 19712. März 1976Hewlett-Packard CompanyKeyboard having switches with tactile feedback
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US449283824. Febr. 19838. Jan. 1985AMP IncorporatedKey switch having an actuator integral with the return spring
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US454776711. Okt. 198315. Okt. 1985Moose Products, Inc.Printed circuit board for activating and deactivating alarm systems
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US477114316. Apr. 198713. Sept. 1988Wilhelm Ruf K.G.Diaphragm keyboard
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US520966512. Okt. 198911. Mai 1993Sight & Sound IncorporatedInteractive audio visual work
US552353122. Dez. 19944. Juni 1996Sony Corporation
Sony Electronics, Inc.
Multi-directional button assembly with center and peripheral arranged buttons and microswitches
US572922225. Nov. 199617. März 1998Jerry IgguldenUser-configurable control device
US580374830. Sept. 19968. Sept. 1998Publications International, Ltd.Apparatus for producing audible sounds in response to visual indicia
US589814729. Okt. 199727. Apr. 1999C & K Components, Inc.Dual tact switch assembly
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US604121531. März 199821. März 2000Publications International, Ltd.Method for making an electronic book for producing audible sounds in response to visual indicia
US646326328. Jan. 20008. Okt. 2002Telefonaktiebolaget LM Ericsson (publ)Communication station
US660340828. Juni 20005. Aug. 2003Brenda Lewellen GabaFlexible membrane keyboard
US734567026. Juni 200118. März 2008AnascapeImage controller
US75079231. Dez. 200624. März 2009Omron Dualtec Automotive Electronics Inc.Electrical switch
USRE3092313. Nov. 19794. Mai 1982Bowmar Instrument CorporationCalculator keyboard switch with disc spring contact and printed circuit board
USRE3111417. Nov. 198028. Dez. 1982Tektronix, Inc.Electrical connector
USRE3241927. Jan. 198612. Mai 1987Engineering Research Applications, Inc.Molded keyboard and method of fabricating same