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发明名称
Method and apparatus for marking metal strip
摘要
申请公布号
US2741585(A)
申请公布日期
1956.04.10
申请号
US19530339508
申请日期
1953.03.02
申请人
UNITED STATES STEEL CORPORATION
发明人
MEDCALF DONALD S.
分类号
C25F7/00
主分类号
C25F7/00
代理机构
代理人
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