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发明名称
WELL STRAINER
摘要
申请公布号
SU1645470(A1)
申请公布日期
1991.04.30
申请号
SU19894679372
申请日期
1989.04.14
申请人
VNII PRIRODNYKH GAZOV
发明人
ARESTOV BORIS V,SU;MAKEEV VIKTOR V,SU;PRASOLOV MIKHAIL F,SU;DROZD LEONID A,SU
分类号
E21B43/08
主分类号
E21B43/08
代理机构
代理人
主权项
地址
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