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经营范围
发明名称
Procédé de fabrication de tuyaux à parois cylindriques multiples.
摘要
申请公布号
CH288215(A)
申请公布日期
1953.01.15
申请号
CHD288215
申请日期
1950.01.16
申请人
FERRAND,GEORGES
发明人
FERRAND,GEORGES
分类号
B21C37/15
主分类号
B21C37/15
代理机构
代理人
主权项
地址
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