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发明名称
Прибор для отбора средней пробы из разбавленного водой бурового шлама
摘要
申请公布号
SU63887(A1)
申请公布日期
1943.11.30
申请号
SU19420316873
申请日期
1942.08.03
申请人
ZVONAREV I.N.
发明人
ZVONAREV I.N.
分类号
E21B49/02;G01N1/04
主分类号
E21B49/02
代理机构
代理人
主权项
地址
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