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发明名称
METHOD OF LAYING UNDERGROUND PIPE-LINE
摘要
申请公布号
SU1404737(A1)
申请公布日期
1988.06.23
申请号
SU19681211566
申请日期
1968.01.15
申请人
VNI PI PO TRANSPORTU PRIRODNOGO GAZA "VNIPITRANSGAZ"
发明人
RYABCHUK LEONID P,SU;SHARNILO IVAN I,SU
分类号
F16L1/028;F16L1/00
主分类号
F16L1/028
代理机构
代理人
主权项
地址
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Steinbearbeitungswerkzeug
