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发明名称
METHOD OF LAYING UNDERGROUND PIPELINE
摘要
申请公布号
SU962713(A2)
申请公布日期
1982.09.30
申请号
SU19802901180
申请日期
1980.03.31
申请人
EX K BYURO PO ZHELEZOBETONU MINISTERSTVA STROITELSTVA PREDPRIYATIJ NEFTYANOJ GAZOVOJ PROMY SSSR
发明人
KALMYKOV ALEKSANDR E,SU;KARETNIKOV IVAN S,SU
分类号
F16L1/028;F16L1/00;(IPC1-7):F16L1/02
主分类号
F16L1/028
代理机构
代理人
主权项
地址
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