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发明名称
Procédé et dispositif pour la fabrication d'une nervure hélicoïdale en tôle autour d'un corps de révolution
摘要
申请公布号
FR1307645(A)
申请公布日期
1962.10.26
申请号
FR19610881200
申请日期
1961.12.07
申请人
发明人
CLAAS GUENTHER
分类号
B21C37/26;B21F3/00
主分类号
B21C37/26
代理机构
代理人
主权项
地址
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