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经营范围
发明名称
Metallurgy
摘要
申请公布号
US2367630(A)
申请公布日期
1945.01.16
申请号
US19420450283
申请日期
1942.07.09
申请人
UDY MARVIN J
发明人
UDY MARVIN J.
分类号
C21C7/00
主分类号
C21C7/00
代理机构
代理人
主权项
地址
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