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发明名称
Flame hardening
摘要
申请公布号
US2218827(A)
申请公布日期
1940.10.22
申请号
US19380200646
申请日期
1938.04.07
申请人
NATIONAL CYLINDER GAS COMPANY
发明人
MOTT CHESTER;WHALEY MALCOLM L.
分类号
C21D1/08
主分类号
C21D1/08
代理机构
代理人
主权项
地址
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