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发明名称
Adjustable loop cutter for mining machines
摘要
申请公布号
US2753169(A)
申请公布日期
1956.07.03
申请号
US19530357223
申请日期
1953.05.25
申请人
JOY MANUFACTURING COMPANY
发明人
JOY JOSEPH F.
分类号
E21C27/04
主分类号
E21C27/04
代理机构
代理人
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地址
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