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发明名称
Closing tool
摘要
申请公布号
US2209892(A)
申请公布日期
1940.07.30
申请号
US19360071631
申请日期
1936.03.30
申请人
AMERICAN FLANGE & MANUFACTURING CO., INC.
发明人
MELRATH RICHARD H.
分类号
B21D51/38;B67B3/10;B67B3/14
主分类号
B21D51/38
代理机构
代理人
主权项
地址
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