TELEPHONE RESPONDER SYSTEM,申请号USD3557313-传众专利搜索

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发明名称	TELEPHONE RESPONDER SYSTEM
摘要
申请公布号	US3557313(A)	申请公布日期	1971.01.19
申请号	USD3557313	申请日期	1968.12.20
申请人	DICTAPHONE INTERNATIONAL AG.	发明人	KURT GUETTINGER
分类号	H04M1/64;(IPC1-7):H04M1/64	主分类号	H04M1/64
代理机构		代理人
主权项
地址

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