Patent US2151706 - BONE-CONDUCTION HEARING-AID V

Patents

Inventors: Hugo Ueber, Hugo Ueber
Current U.S. Classification: 381/326; 181/137; 224/.5; 224/181; 381/162; 381/327

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Citing Patent	Filing date	Issue date	Original Assignee	Title
US4187838	15 Aug 1977	12 Feb 1980		Ear clip for flattening of protruding ears
US4791673	4 Dec 1986	13 Dec 1988		Bone conduction audio listening device and method
US6603863	22 Dec 1999	5 Aug 2003	Matsushita Electric Industrial Co., Ltd.	Headphone apparatus for providing dynamic sound with vibrations and method therefor
US6950682	31 May 2002	27 Sep 2005	Temco Japan Co., Ltd.	Transceiver