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经营范围
发明名称
CIRCULATION VALVE
摘要
申请公布号
RU1082941(C)
申请公布日期
1995.06.19
申请号
SU19823461055
申请日期
1982.07.02
申请人
SILVESTROV VASILIJ REMOVICH;PUSTOV VALERIJ VIKTOROVICH
发明人
SILVESTROV V.R.;PUSTOV V.V.
分类号
E21B49/00;(IPC1-7):E21B49/00
主分类号
E21B49/00
代理机构
代理人
主权项
地址
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