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发明名称
Portable tool for reconditioning crane rails
摘要
申请公布号
US2727340(A)
申请公布日期
1955.12.20
申请号
US19530377746
申请日期
1953.08.31
申请人
ZANOTTA ALFRED S
发明人
ZANOTTA ALFRED S.
分类号
E01B31/17
主分类号
E01B31/17
代理机构
代理人
主权项
地址
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