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发明名称
Manufacture of wrought iron
摘要
申请公布号
US1987598(A)
申请公布日期
1935.01.15
申请号
US19340708140
申请日期
1934.01.24
申请人
A. M. BYERS COMPANY
发明人
ASTON JAMES;STORY EDWARD B.
分类号
C21C3/00
主分类号
C21C3/00
代理机构
代理人
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