TWIN-SPINDLE AUGER DRILLING MACHINE,申请号SU19772523306-传众专利搜索

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发明名称	TWIN-SPINDLE AUGER DRILLING MACHINE
摘要
申请公布号	SU744125(A1)	申请公布日期	1980.06.30
申请号	SU19772523306	申请日期	1977.09.09
申请人	INST GORNOGO DELA IM. A.A. SKOCHINSKOGO	发明人	LAMBROV VLADIMIR V,SU;BUDANCHIKOV VLADISLAV L,SU;SAFONOV MIKHAIL V,SU;BUDANCHIKOV LEONID A,SU
分类号	E21B3/00;E21C27/22;(IPC1-7):E21C1/14	主分类号	E21B3/00
代理机构		代理人
主权项
地址

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