发明名称 Hearing Aid Device
摘要 A hearing aid device, including a switch being operable to open and close an electric circuit of the device; and a battery locating means for selectively locating a battery within said device for electrical communication with said electric circuit, wherein the switch inhibits the battery locating means from removing the battery from electrical communication with said electric circuit when the switch is arranged to close the electric circuit.
申请公布号 US2009110222(A1) 申请公布日期 2009.04.30
申请号 US20050922612 申请日期 2005.06.25
申请人 HEERLEIN MARKUS;HO WAI KIT 发明人 HEERLEIN MARKUS;HO WAI KIT
分类号 H04R25/00 主分类号 H04R25/00
代理机构 代理人
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