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发明名称
DEVICE FOR MAKING NO-FREEZING ZONE IN WATER AREA
摘要
申请公布号
RU1791526(C)
申请公布日期
1993.01.30
申请号
SU19904862926
申请日期
1990.08.30
申请人
KARTASHEV VITALIJ P,SU
发明人
KARTASHEV VITALIJ P,SU
分类号
E02B15/00
主分类号
E02B15/00
代理机构
代理人
主权项
地址
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