UNIT FOR GROOVE-LESS LAYING OF PIPELINES IN THE SOIL,ESPECIALLY THOSE MADE OF ELESTIC PIPES,申请号PL19760194171-传众专利搜索

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发明名称	UNIT FOR GROOVE-LESS LAYING OF PIPELINES IN THE SOIL,ESPECIALLY THOSE MADE OF ELESTIC PIPES
摘要
申请公布号	PL108638(B1)	申请公布日期	1980.04.30
申请号	PL19760194171	申请日期	1976.12.03
申请人		发明人
分类号	E02B11/02;E02F;E02F5/10;(IPC1-7):E02F5/10	主分类号	E02B11/02
代理机构		代理人
主权项
地址

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