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发明名称
Method of manufacturing axles and the like
摘要
申请公布号
US2212903(A)
申请公布日期
1940.08.27
申请号
US19370164807
申请日期
1937.09.20
申请人
STEIGERWALT ALBERT B
发明人
STEIGERWALT ALBERT B.
分类号
B21K1/06
主分类号
B21K1/06
代理机构
代理人
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