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发明名称
Perfectionnements aux dispositifs d'usinage comportant matrices et poinçons
摘要
申请公布号
FR928015(A)
申请公布日期
1947.11.17
申请号
FRD928015
申请日期
1946.04.30
申请人
发明人
LOISY PAUL-CHARLES-ADRIEN
分类号
B21D45/00;B21D45/02
主分类号
B21D45/00
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代理人
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