METHOD OF FORMING SUBTERRANEAN VOIDS,申请号SU19792841397-传众专利搜索

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发明名称	METHOD OF FORMING SUBTERRANEAN VOIDS
摘要
申请公布号	SU877017(A1)	申请公布日期	1981.10.30
申请号	SU19792841397	申请日期	1979.11.16
申请人	MOLDAVSKIJ NI PK I STROITELNYKH MATERIALOV	发明人	SPIVAKOV FELIKS P,SU;LADYZHENSKIJ ISAK L,SU;PETROV ALEKSANDR N,SU;ERMOLAEV GENNADIJ K,SU;MILESHIN GENNADIJ V,SU
分类号	E02D29/00;E03B11/14;E21C41/00;(IPC1-7):E21C41/06	主分类号	E02D29/00
代理机构		代理人
主权项
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