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发明名称
摘要
申请公布号	BE743836(A)	申请公布日期	1970.06.30
申请号	BED743836	申请日期	1969.12.30
申请人		发明人
分类号	H01H33/56;H01H33/867;H01H33/873	主分类号	H01H33/56
代理机构		代理人
主权项
地址

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