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发明名称
Fil métallique rugueux, et procédé pour sa fabrication
摘要
申请公布号
FR918834(A)
申请公布日期
1947.02.19
申请号
FRD918834
申请日期
1945.12.14
申请人
发明人
ABRAHAM LEWIS CROWFORD
分类号
B21F1/04
主分类号
B21F1/04
代理机构
代理人
主权项
地址
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