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发明名称
Procédé et presse pour façonner sans déchets des pièces d'ouvrage en forme de surfaces, notamment pour emboutir des tôles
摘要
申请公布号
FR830770(A)
申请公布日期
1938.08.09
申请号
FRD830770
申请日期
1937.12.13
申请人
HENSCHEL FLUGZEUG-WERKE A. G.
发明人
分类号
B21D22/02
主分类号
B21D22/02
代理机构
代理人
主权项
地址
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