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发明名称
摘要
申请公布号
FR1552941(A)
申请公布日期
1969.01.10
申请号
FRD1552941
申请日期
1967.10.12
申请人
发明人
分类号
B23Q1/52;B23Q1/70;B23Q5/04;B24B41/06;B24B47/04
主分类号
B23Q1/52
代理机构
代理人
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