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发明名称
FOERFARANDE FOER AOTERUPPTAGNING AV SLAMCIRKULATIONEN I EN IBRUKVARANDE KAELLA, OCH EN ANORDNING FOER DESS FOERVERKLIGANDE
摘要
申请公布号
FI933101(A0)
申请公布日期
1993.07.06
申请号
FI19930003101
申请日期
1993.07.06
申请人
EFIMKIN, ALEXEI ALEXEEVICH
发明人
EFIMKIN, ALEXEI ALEXEEVICH
分类号
E21B21/00;E21B37/00;E21B43/00
主分类号
E21B21/00
代理机构
代理人
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