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发明名称
METHOD OF PLACING U-SHAPED PIPES IN GROUND
摘要
申请公布号
SU1719545(A1)
申请公布日期
1992.03.15
申请号
SU19904779749
申请日期
1990.01.08
申请人
PK I "LENINZHSTROJPROEKT"
发明人
NADTOCHIJ SERGEJ S,SU;ZAJTSEV ALEKSEJ A,SU;MOROZOV MIKHAIL YU,SU;MAYAKOVA ELENA YU,SU
分类号
E02D7/00;E02D3/115
主分类号
E02D7/00
代理机构
代理人
主权项
地址
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