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经营范围
发明名称
Steel roll
摘要
申请公布号
US2336246(A)
申请公布日期
1943.12.07
申请号
US19410422009
申请日期
1941.12.06
申请人
HARRIS WILFORD C
发明人
HARRIS WILFORD C.
分类号
B21B27/00
主分类号
B21B27/00
代理机构
代理人
主权项
地址
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