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发明名称
Chainmaking apparatus
摘要
申请公布号
US2637159(A)
申请公布日期
1953.05.05
申请号
US19500140829
申请日期
1950.01.27
申请人
CHARLES D. J. SMITH
发明人
COOKE ROBERT L.
分类号
B21L5/02
主分类号
B21L5/02
代理机构
代理人
主权项
地址
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