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经营范围
发明名称
Alloy
摘要
申请公布号
US1921418(A)
申请公布日期
1933.08.08
申请号
US19330672468
申请日期
1933.05.23
申请人
HANDY & HARMAN
发明人
LEACH ROBERT H.
分类号
C22C9/00
主分类号
C22C9/00
代理机构
代理人
主权项
地址
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