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发明名称
摘要
申请公布号	FR2112461(B1)	申请公布日期	1976.03.26
申请号	FR19710036686	申请日期	1971.10.13
申请人	BROWN PRESTON	发明人
分类号	H04M11/04;(IPC1-7):G08B19/00;G08B25/00;H04M11/00	主分类号	H04M11/04
代理机构		代理人
主权项
地址

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