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发明名称
Procédé et dispositif pour le frettage de tuyaux et autres pièces, et pièces en résultant
摘要
申请公布号
FR835173(A)
申请公布日期
1938.12.14
申请号
FRD835173
申请日期
1937.08.28
申请人
SOCIETE ANONYME DES HAUTS-FOURNEAUX & FONDERIES DE PONT-A-MOUSSON
发明人
分类号
B21F99/00
主分类号
B21F99/00
代理机构
代理人
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