Mineral piercing and cutting,申请号US19390268635-传众专利搜索

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法人/股东/高管

发明名称	Mineral piercing and cutting
摘要
申请公布号	US2286192(A)	申请公布日期	1942.06.16
申请号	US19390268635	申请日期	1939.04.18
申请人	THE LINDE AIR PRODUCTS COMPANY	发明人	AITCHISON ROBERT B.;SMITH GEORGE H.;SWARTOUT CHARLES W.
分类号	E21B7/14	主分类号	E21B7/14
代理机构		代理人
主权项
地址

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