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发明名称
STEEL ALLOY TUBES
摘要
申请公布号
US3656917(A)
申请公布日期
1972.04.18
申请号
USD3656917
申请日期
1969.04.10
申请人
NIPPON KOKAN KK.
发明人
OSAMU KIKKAWA;AKIRA KAMBAYASHI
分类号
C22C38/00;C22C38/04;C22C38/06;C22C38/18;C22C38/20;(IPC1-7):B21C37/00
主分类号
C22C38/00
代理机构
代理人
主权项
地址
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