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发明名称
DEVICE FOR PROTECTING PIPELINE FROM FREEZING
摘要
申请公布号
SU1581817(A1)
申请公布日期
1990.07.30
申请号
SU19884460079
申请日期
1988.07.13
申请人
KHABAROVSKIJ I INZHENEROV ZHELEZNODOROZHNOGO TRANSPORTA
发明人
PUTKO ALEKSANDR V,SU;YUDIN MIKHAIL YU,SU
分类号
E03B7/10
主分类号
E03B7/10
代理机构
代理人
主权项
地址
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