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发明名称
Workholder for piston ring heat-treatment
摘要
申请公布号
US2471754(A)
申请公布日期
1949.05.31
申请号
US19440547958
申请日期
1944.08.03
申请人
HARRY M. BRAMBERRY, SR.
发明人
JONES CERNYW F.
分类号
C21D9/40;C23C8/26
主分类号
C21D9/40
代理机构
代理人
主权项
地址
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