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发明名称
Extrusion of hollow bodies
摘要
申请公布号
US2810478(A)
申请公布日期
1957.10.22
申请号
US19530349197
申请日期
1953.04.16
申请人
SOCIETE ANONYME DITE: COMPTOIR INDUSTRIEL D'ETIRAGE ET PROFILAGE DE METAUX
发明人
SEJOURNET JACQUES;BUFFET JEAN
分类号
B21C23/32
主分类号
B21C23/32
代理机构
代理人
主权项
地址
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