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发明名称
MACHINE FOR CUTTING A ROADWAY IN UNDERGROUND WORKINGS
摘要
申请公布号
US3442554(A)
申请公布日期
1969.05.06
申请号
USD3442554
申请日期
1966.09.28
申请人
DOWTY MECO LTD.
发明人
THOMAS CAMPBELL PAUL
分类号
E21D9/10;(IPC1-7):E21D9/00;E01G3/04
主分类号
E21D9/10
代理机构
代理人
主权项
地址
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