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发明名称
Means for making articles having a polygonal cross section
摘要
申请公布号
US1977164(A)
申请公布日期
1934.10.16
申请号
US19330687983
申请日期
1933.09.02
申请人
THE WATERBURY FARREL FOUNDRY AND MACHINE COMPANY
发明人
WILCOX RICHARD LESTER
分类号
B21K1/44
主分类号
B21K1/44
代理机构
代理人
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地址
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