Долото,申请号SU19390026086-传众专利搜索

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发明名称	Долото
摘要
申请公布号	SU58638(A1)	申请公布日期	1939.11.30
申请号	SU19390026086	申请日期	1939.08.11
申请人	KIRSHENBAUM YA.M.;OKHRIMENKO N.M.	发明人	KIRSHENBAUM YA.M.;OKHRIMENKO N.M.
分类号	E21B10/26	主分类号	E21B10/26
代理机构		代理人
主权项
地址

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