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发明名称
Procédé et appareil pour le mandrinage des pièces hélicoïdales
摘要
申请公布号
FR1000679(A)
申请公布日期
1952.02.14
申请号
FRD1000679
申请日期
1949.03.18
申请人
NATIONAL BROACH AND MACHINE CO.
发明人
分类号
B23D37/16
主分类号
B23D37/16
代理机构
代理人
主权项
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