STEREOPHONIC PICK-UP,申请号USD3525528-传众专利搜索

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发明名称	STEREOPHONIC PICK-UP
摘要
申请公布号	US3525528(A)	申请公布日期	1970.08.25
申请号	USD3525528	申请日期	1962.07.17
申请人	RONETTE PIEZO ELECTRISCHE IND. NV.	发明人	MACHIEL DE VRIES
分类号	H04R17/08;(IPC1-7):H04R1/16;G11B3/04	主分类号	H04R17/08
代理机构		代理人
主权项
地址

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