Improved subterranean gasification installation,申请号GB19450034731-传众专利搜索

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发明名称	Improved subterranean gasification installation
摘要
申请公布号	GB614415(A)	申请公布日期	1948.12.15
申请号	GB19450034731	申请日期	1945.12.21
申请人	PIERRE DEMART	发明人
分类号	E21B43/295	主分类号	E21B43/295
代理机构		代理人
主权项
地址

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