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发明名称
Burster cone for continuous miner boring head
摘要
申请公布号
US2754100(A)
申请公布日期
1956.07.10
申请号
US19540473194
申请日期
1954.12.06
申请人
GOODMAN MANUFACTURING COMPANY
发明人
CARTLIDGE FRANK
分类号
E21C27/22
主分类号
E21C27/22
代理机构
代理人
主权项
地址
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