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发明名称
Nouveaux modes de fabrication des coudes de tuyaux de chauffage ou autres
摘要
申请公布号
FR978939(A)
申请公布日期
1951.04.19
申请号
FRD978939
申请日期
1949.01.14
申请人
发明人
JOUISSE MAURICE
分类号
B21C37/28
主分类号
B21C37/28
代理机构
代理人
主权项
地址
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