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发明名称
摘要
申请公布号
FR2116970(A5)
申请公布日期
1972.07.21
申请号
FR19700045476
申请日期
1970.12.04
申请人
DUMONTEIL LACREZE PIERRE
发明人
分类号
B23G9/00;(IPC1-7):B23G9/00
主分类号
B23G9/00
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