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经营范围
发明名称
OSCILLATING CUTTER RIPPER MINER
摘要
申请公布号
US3469885(A)
申请公布日期
1969.09.30
申请号
USD3469885
申请日期
1968.10.15
申请人
WESTINGHOUSE AIR BRAKE CO.
发明人
GUSTAF ALBERT MARBERG
分类号
E21C27/24;(IPC1-7):E21C25/12
主分类号
E21C27/24
代理机构
代理人
主权项
地址
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