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发明名称
摘要
申请公布号	FR1552148(A)	申请公布日期	1969.01.03
申请号	FRD1552148	申请日期	1967.11.20
申请人		发明人
分类号	B24B19/02;B24B49/00;H01C17/245	主分类号	B24B19/02
代理机构		代理人
主权项
地址

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