OIL WELL RIG,申请号CAD406140-传众专利搜索

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发明名称	OIL WELL RIG
摘要
申请公布号	CA406140(A)	申请公布日期	1942.07.21
申请号	CAD406140	申请日期
申请人	MERVIN E. BOLLES	发明人	MERVIN E. BOLLES
分类号		主分类号
代理机构		代理人
主权项
地址

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