SU375372A1 - - Google Patents

Info

Publication number
SU375372A1
SU375372A1 SU890800A SU890800A SU375372A1 SU 375372 A1 SU375372 A1 SU 375372A1 SU 890800 A SU890800 A SU 890800A SU 890800 A SU890800 A SU 890800A SU 375372 A1 SU375372 A1 SU 375372A1
Authority
SU
USSR - Soviet Union
Prior art keywords
blades
radius
crown
ring
carbide inserts
Prior art date
Application number
SU890800A
Other languages
English (en)
Russian (ru)
Inventor
А. Дзамашвили Н.
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 filed Critical
Priority to SU890800A priority Critical patent/SU375372A1/ru
Application granted granted Critical
Publication of SU375372A1 publication Critical patent/SU375372A1/ru

Links

Landscapes

  • Earth Drilling (AREA)
SU890800A 1964-03-23 1964-03-23 SU375372A1 (https=)

Priority Applications (1)

Application Number Priority Date Filing Date Title
SU890800A SU375372A1 (https=) 1964-03-23 1964-03-23

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
SU890800A SU375372A1 (https=) 1964-03-23 1964-03-23

Publications (1)

Publication Number Publication Date
SU375372A1 true SU375372A1 (https=) 1973-03-23

Family

ID=20437881

Family Applications (1)

Application Number Title Priority Date Filing Date
SU890800A SU375372A1 (https=) 1964-03-23 1964-03-23

Country Status (1)

Country Link
SU (1) SU375372A1 (https=)

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