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发明名称
Method for zone hardening
摘要
申请公布号
US2293048(A)
申请公布日期
1942.08.18
申请号
US19400326946
申请日期
1940.03.30
申请人
THE OHIO CRANKSHAFT CO.
发明人
DENNEEN FRANCIS S.;DUNN WILLIAM C.
分类号
H05B6/36
主分类号
H05B6/36
代理机构
代理人
主权项
地址
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