Remotely controlled bore mining machine-automatic course controller,申请号US19520307246-传众专利搜索

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发明名称	Remotely controlled bore mining machine-automatic course controller
摘要
申请公布号	US2761666(A)	申请公布日期	1956.09.04
申请号	US19520307246	申请日期	1952.08.30
申请人	UNION CARBIDE AND CARBON CORPORATION	发明人	HEIMASTER JOHN W.;SPRACKLEN STANFORD B.
分类号	E21C35/24	主分类号	E21C35/24
代理机构		代理人
主权项
地址

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