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发明名称
Alloy
摘要
申请公布号
US2289640(A)
申请公布日期
1942.07.14
申请号
US19390273501
申请日期
1939.05.13
申请人
WILBUR B. DRIVER CO.
发明人
FETZ ERICH
分类号
C22C19/05
主分类号
C22C19/05
代理机构
代理人
主权项
地址
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