SU578420A1 - Буровое долото - Google Patents

Буровое долото

Info

Publication number
SU578420A1
SU578420A1 SU7201750618A SU1750618A SU578420A1 SU 578420 A1 SU578420 A1 SU 578420A1 SU 7201750618 A SU7201750618 A SU 7201750618A SU 1750618 A SU1750618 A SU 1750618A SU 578420 A1 SU578420 A1 SU 578420A1
Authority
SU
USSR - Soviet Union
Prior art keywords
drill bit
drill
bit
Prior art date
Application number
SU7201750618A
Other languages
English (en)
Inventor
Борис Фридрихович Трахтенберг
Григорий Петрович Костенков
Зоя Кирилловна Костенкова
Original Assignee
Куйбышевский Политехнический Институт Имени В.В.Куйбышева
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 Куйбышевский Политехнический Институт Имени В.В.Куйбышева filed Critical Куйбышевский Политехнический Институт Имени В.В.Куйбышева
Priority to SU7201750618A priority Critical patent/SU578420A1/ru
Application granted granted Critical
Publication of SU578420A1 publication Critical patent/SU578420A1/ru

Links

SU7201750618A 1972-02-22 1972-02-22 Буровое долото SU578420A1 (ru)

Priority Applications (1)

Application Number Priority Date Filing Date Title
SU7201750618A SU578420A1 (ru) 1972-02-22 1972-02-22 Буровое долото

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
SU7201750618A SU578420A1 (ru) 1972-02-22 1972-02-22 Буровое долото

Publications (1)

Publication Number Publication Date
SU578420A1 true SU578420A1 (ru) 1977-10-30

Family

ID=20503950

Family Applications (1)

Application Number Title Priority Date Filing Date
SU7201750618A SU578420A1 (ru) 1972-02-22 1972-02-22 Буровое долото

Country Status (1)

Country Link
SU (1) SU578420A1 (ru)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4496013A (en) * 1982-08-23 1985-01-29 Smith International, Inc. Prevention of cone seal failures in rock bits
US4624329A (en) * 1984-02-15 1986-11-25 Varel Manufacturing Company Rotating cutter drill set

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4496013A (en) * 1982-08-23 1985-01-29 Smith International, Inc. Prevention of cone seal failures in rock bits
US4624329A (en) * 1984-02-15 1986-11-25 Varel Manufacturing Company Rotating cutter drill set

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