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RU1786238C - Drill bit - Google Patents

Drill bit

Info

Publication number
RU1786238C
RU1786238C SU884609054A SU4609054A RU1786238C RU 1786238 C RU1786238 C RU 1786238C SU 884609054 A SU884609054 A SU 884609054A SU 4609054 A SU4609054 A SU 4609054A RU 1786238 C RU1786238 C RU 1786238C
Authority
RU
Russia
Prior art keywords
drill bit
drill
bit
Prior art date
Application number
SU884609054A
Other languages
Russian (ru)
Inventor
Геннадий Георгиевич Буринский
Валерий Александрович Кирсанов
Михаил Давидович Либерман
Original Assignee
Специальное Конструкторское Бюро Научно-Производственного Объединения "Геотехника"
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Специальное Конструкторское Бюро Научно-Производственного Объединения "Геотехника" filed Critical Специальное Конструкторское Бюро Научно-Производственного Объединения "Геотехника"
Priority to SU884609054A priority Critical patent/RU1786238C/en
Application granted granted Critical
Publication of RU1786238C publication Critical patent/RU1786238C/en

Links

Landscapes

  • Pens And Brushes (AREA)
  • Earth Drilling (AREA)
  • Pharmaceuticals Containing Other Organic And Inorganic Compounds (AREA)

Description

фиг.4figure 4

SU884609054A 1988-11-28 1988-11-28 Drill bit RU1786238C (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
SU884609054A RU1786238C (en) 1988-11-28 1988-11-28 Drill bit

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
SU884609054A RU1786238C (en) 1988-11-28 1988-11-28 Drill bit

Publications (1)

Publication Number Publication Date
RU1786238C true RU1786238C (en) 1993-01-07

Family

ID=21410975

Family Applications (1)

Application Number Title Priority Date Filing Date
SU884609054A RU1786238C (en) 1988-11-28 1988-11-28 Drill bit

Country Status (1)

Country Link
RU (1) RU1786238C (en)

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