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发明名称
Composition of matter
摘要
申请公布号
US1826454(A)
申请公布日期
1931.10.06
申请号
US19280268389
申请日期
1928.04.09
申请人
FIRTH-STERLING STEEL COMPANY
发明人
COMSTOCK GREGORY J.
分类号
C22C29/06
主分类号
C22C29/06
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代理人
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