Capsule de microphone,申请号FRD923360-传众专利搜索

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发明名称	Capsule de microphone
摘要
申请公布号	FR923360(A)	申请公布日期	1947.07.04
申请号	FRD923360	申请日期	1946.03.05
申请人	ZELLWEGER A. G. APPARATE- UND MASCHINENFABRIKEN USTER	发明人
分类号	H04R1/22	主分类号	H04R1/22
代理机构		代理人
主权项
地址

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