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发明名称
摘要
申请公布号	DE3002757(C2)	申请公布日期	1982.11.18
申请号	DE19803002757	申请日期	1980.01.26
申请人	PPG INDUSTRIES CANADA LTD., REGINA, SASKATCHEWAN, CA	发明人	GOLDSMITH, ELMAR LEROY, REGINA, SASKATCHEWAN, CA
分类号	C01D3/08;E21B43/28;(IPC1-7):E21B43/28	主分类号	C01D3/08
代理机构		代理人
主权项
地址

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