SU580302A1 - Disc bit - Google Patents

Disc bit

Info

Publication number
SU580302A1
SU580302A1 SU7502156889A SU2156889A SU580302A1 SU 580302 A1 SU580302 A1 SU 580302A1 SU 7502156889 A SU7502156889 A SU 7502156889A SU 2156889 A SU2156889 A SU 2156889A SU 580302 A1 SU580302 A1 SU 580302A1
Authority
SU
USSR - Soviet Union
Prior art keywords
disc bit
bit
disc
phi1
examination
Prior art date
Application number
SU7502156889A
Other languages
Russian (ru)
Inventor
Юрий Михайлович Гержберг
Иван Емельянович Долгий
Тарама Григорьевна Авакян
Сергей Даргоевич Оганов
Владимир Николаевич Езепенко
Original Assignee
Ухтинский индустриальный институт
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 Ухтинский индустриальный институт filed Critical Ухтинский индустриальный институт
Priority to SU7502156889A priority Critical patent/SU580302A1/en
Application granted granted Critical
Publication of SU580302A1 publication Critical patent/SU580302A1/en

Links

Description

Источники информации, прин тые во внимание при экспертизеSources of information taken into account in the examination

1. Патент США № 2003791, кл. 175-339, опублик. 1935.1. US Patent No. 2003791, cl. 175-339, published. 1935.

2. Авторское свидетельство № 250794, кл. Е 21В 9/14, 1967.2. Copyright certificate № 250794, cl. E 21B 9/14, 1967.

Фи1.Phi1.

Фиг. 2FIG. 2

SU7502156889A 1975-07-11 1975-07-11 Disc bit SU580302A1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
SU7502156889A SU580302A1 (en) 1975-07-11 1975-07-11 Disc bit

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
SU7502156889A SU580302A1 (en) 1975-07-11 1975-07-11 Disc bit

Publications (1)

Publication Number Publication Date
SU580302A1 true SU580302A1 (en) 1977-11-15

Family

ID=20626829

Family Applications (1)

Application Number Title Priority Date Filing Date
SU7502156889A SU580302A1 (en) 1975-07-11 1975-07-11 Disc bit

Country Status (1)

Country Link
SU (1) SU580302A1 (en)

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