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经营范围
发明名称
Procédé de façonnage d'un secteur de paroi d'un tronçon d'un tube et tube obtenu par ce procédé.
摘要
申请公布号
CH312307(A)
申请公布日期
1955.12.31
申请号
CHD312307
申请日期
1951.10.01
申请人
HUET,ANDRE
发明人
HUET,ANDRE
分类号
B21D7/16;H05B7/00
主分类号
B21D7/16
代理机构
代理人
主权项
地址
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