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发明名称
Marked steel bar and method of marking
摘要
申请公布号
US2383165(A)
申请公布日期
1945.08.21
申请号
US19440517760
申请日期
1944.01.10
申请人
SCHUYLER CHARLES V
发明人
SCHUYLER CHARLES V.
分类号
B21C51/00
主分类号
B21C51/00
代理机构
代理人
主权项
地址
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