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发明名称
Procédé et dispositif pour la fabrication des ébauches de vis à pans en creux
摘要
申请公布号
FR873498(A)
申请公布日期
1942.07.09
申请号
FRD873498
申请日期
1941.06.24
申请人
发明人
ZALESKI LUDWIK
分类号
B21K1/46
主分类号
B21K1/46
代理机构
代理人
主权项
地址
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