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发明名称
Jig for selective hardening of steel rings
摘要
申请公布号
US2765161(A)
申请公布日期
1956.10.02
申请号
US19520291407
申请日期
1952.06.03
申请人
WILLIAM MUNGALL
发明人
SR. THOMAS MUNGALL,
分类号
C21D1/00;C21D9/40;G04D3/00;H01F13/00
主分类号
C21D1/00
代理机构
代理人
主权项
地址
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