Rufeinrichtung von Wechselsprech-, Gegensprech- und Rufanlagen,申请号DE1950L006276-传众专利搜索

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发明名称	Rufeinrichtung von Wechselsprech-, Gegensprech- und Rufanlagen
摘要
申请公布号	DE905620(C)	申请公布日期	1954.03.04
申请号	DE1950L006276	申请日期	1950.11.12
申请人	LABORATORIUM WENNEBOSTEL DR.-ING. SENNHEISER	发明人	MARTINI DIPL.-ING. WOLFGANG
分类号	H04M9/00	主分类号	H04M9/00
代理机构		代理人
主权项
地址

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