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经营范围
发明名称
NON-RIDGING CHROMIUM STAINLESS STEEL
摘要
申请公布号
US3674467(A)
申请公布日期
1972.07.04
申请号
USD3674467
申请日期
1969.07.23
申请人
ARMCO STEEL CORP.
发明人
DAVID L. CHALK
分类号
C22C38/00;C22C38/18;(IPC1-7):C22C39/16;C21D9/48
主分类号
C22C38/00
代理机构
代理人
主权项
地址
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