LIGHTWEIGHT PROPPANT FOR OIL AND GAS WELLS AND METHODS FOR MAKING AND USING SAME,申请号AU19890039226-传众专利搜索

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发明名称	LIGHTWEIGHT PROPPANT FOR OIL AND GAS WELLS AND METHODS FOR MAKING AND USING SAME
摘要
申请公布号	AU3922689(A)	申请公布日期	1990.02.08
申请号	AU19890039226	申请日期	1989.08.02
申请人	NORTON PROPPANTS INC.	发明人	NAME NOT GIVEN
分类号	C04B33/04;C04B35/14;C04B35/64;C04B35/66;E21B43/00;E21B43/267	主分类号	C04B33/04
代理机构		代理人
主权项
地址

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