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发明名称
Method of manufacturing valves
摘要
申请公布号
US2117351(A)
申请公布日期
1938.05.17
申请号
US19360079399
申请日期
1936.05.12
申请人
MERCO NORDSTROM VALVE COMPANY
发明人
NORDSTROM SVEN J.
分类号
B21K1/24
主分类号
B21K1/24
代理机构
代理人
主权项
地址
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