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发明名称
Disc-type balling device
摘要
申请公布号
US2818601(A)
申请公布日期
1958.01.07
申请号
US19550543059
申请日期
1955.10.27
申请人
UNITED STATES STEEL CORPORATION
发明人
AGARWAL JAGDISH C.
分类号
C22B1/24
主分类号
C22B1/24
代理机构
代理人
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地址
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