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经营范围
发明名称
Metal working
摘要
申请公布号
US2932890(A)
申请公布日期
1960.04.19
申请号
US19550485220
申请日期
1955.01.31
申请人
THE LODGE & SHIPLEY COMPANY
发明人
SPORCK CLAUS L.;SASSEN BERNARD
分类号
B21C37/18;B21D22/16
主分类号
B21C37/18
代理机构
代理人
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