Improvements in oil well mast gin poles,申请号GB19540021470-传众专利搜索

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发明名称	Improvements in oil well mast gin poles
摘要
申请公布号	GB751826(A)	申请公布日期	1956.07.04
申请号	GB19540021470	申请日期	1954.07.22
申请人	LEE C. MOORE CORPORATION	发明人
分类号	E04H12/34;E21B15/00	主分类号	E04H12/34
代理机构		代理人
主权项
地址

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