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发明名称
CHROME STEEL ALLOY AND VALVE
摘要
申请公布号
CA393512(A)
申请公布日期
1940.12.31
申请号
CAD393512
申请日期
申请人
CRUCIBLE STEEL COMPANY OF AMERICA
发明人
WALTER L. HODAPP;LEWIS S. BERGEN;PETER PAYSON
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主分类号
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