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发明名称
Method of forming radiators
摘要
申请公布号
US1791517(A)
申请公布日期
1931.02.10
申请号
US19280302726
申请日期
1928.08.29
申请人
TRANE REUBEN N
发明人
TRANE REUBEN N.
分类号
B21C37/24
主分类号
B21C37/24
代理机构
代理人
主权项
地址
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