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发明名称
Machinery for making circular and coiled articles
摘要
申请公布号
US2160497(A)
申请公布日期
1939.05.30
申请号
US19370169419
申请日期
1937.10.16
申请人
GARRETT HICKMAN KATHERINE
发明人
HICKMAN KATHERINE GARRETT
分类号
B21D53/20
主分类号
B21D53/20
代理机构
代理人
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