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发明名称
Procédé de fabrication à froid d'éléments tubulaires en forme de té, de croix ou analogue
摘要
申请公布号
FR1411888(A)
申请公布日期
1965.09.24
申请号
FR19640985187
申请日期
1964.08.14
申请人
发明人
GAILLARD PIERRE
分类号
B21C37/29
主分类号
B21C37/29
代理机构
代理人
主权项
地址
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