Procédé et dispositif de protection du soutènement de puits contre des changements de température,申请号FR19670101902-传众专利搜索

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发明名称	Procédé et dispositif de protection du soutènement de puits contre des changements de température
摘要
申请公布号	FR1518220(A)	申请公布日期	1968.03.22
申请号	FR19670101902	申请日期	1967.04.07
申请人	KALI-FORSCHUNGSINSTITUT	发明人
分类号	E21D5/00	主分类号	E21D5/00
代理机构		代理人
主权项
地址

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