RINGER VOLUME CONTROL,申请号USD3487811-传众专利搜索

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发明名称	RINGER VOLUME CONTROL
摘要
申请公布号	US3487811(A)	申请公布日期	1970.01.06
申请号	USD3487811	申请日期	1967.04.25
申请人	INTERN. TELEPHONE & TELEGRAPH CORP.	发明人	EUGEN OTTO ROTHACKER
分类号	G10K1/064;(IPC1-7):G10K1/36	主分类号	G10K1/064
代理机构		代理人
主权项
地址

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