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经营范围
发明名称
Means for steering an unattended vehicle along a trench
摘要
申请公布号
US3397651(A)
申请公布日期
1968.08.20
申请号
US19660544978
申请日期
1966.04.25
申请人
WESTINGHOUSE AIR BRAKE COMPANY
发明人
BIEDESS ANTHONY R.
分类号
E21C35/24;E21F13/06
主分类号
E21C35/24
代理机构
代理人
主权项
地址
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