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发明名称
摘要
申请公布号
FR2393637(B1)
申请公布日期
1982.11.26
申请号
FR19770017392
申请日期
1977.06.07
申请人
DAUSSAN ET CIE
发明人
分类号
B22D41/02;(IPC1-7):B22D41/02;B22D11/10
主分类号
B22D41/02
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