PERMANENT TYPE PACKING MEANS FOR WELLS,申请号CAD494574-传众专利搜索

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发明名称	PERMANENT TYPE PACKING MEANS FOR WELLS
摘要
申请公布号	CA494574(A)	申请公布日期	1953.07.21
申请号	CAD494574	申请日期
申请人	THE ATLANTIC REFINING COMPANY	发明人	JACK C. WEBBER
分类号		主分类号
代理机构		代理人
主权项
地址

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