TWO-WIRE MULTIUNIT INTERCOM SYSTEM,申请号USD3531594-传众专利搜索

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发明名称	TWO-WIRE MULTIUNIT INTERCOM SYSTEM
摘要
申请公布号	US3531594(A)	申请公布日期	1970.09.29
申请号	USD3531594	申请日期	1968.08.05
申请人	NATHANIEL DICKERSON	发明人	NATHANIEL DICKERSON
分类号	H04M9/00;(IPC1-7):H04M9/02	主分类号	H04M9/00
代理机构		代理人
主权项
地址

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