SU52373A1 - Бурова коронка - Google Patents

Бурова коронка

Info

Publication number
SU52373A1
SU52373A1 SU186347A SU186347A SU52373A1 SU 52373 A1 SU52373 A1 SU 52373A1 SU 186347 A SU186347 A SU 186347A SU 186347 A SU186347 A SU 186347A SU 52373 A1 SU52373 A1 SU 52373A1
Authority
SU
USSR - Soviet Union
Prior art keywords
burov
crown
burov crown
zak
type
Prior art date
Application number
SU186347A
Other languages
English (en)
Inventor
В.Д. Романов
Б.Е. Свешников
Original Assignee
В.Д. Романов
Б.Е. Свешников
Filing date
Publication date
Application filed by В.Д. Романов, Б.Е. Свешников filed Critical В.Д. Романов
Application granted granted Critical
Publication of SU52373A1 publication Critical patent/SU52373A1/ru

Links

Description

Тип.,Печатный Труд. Зак. 1338-250
SU186347A 1936-02-07 Бурова коронка SU52373A1 (ru)

Publications (1)

Publication Number Publication Date
SU52373A1 true SU52373A1 (ru) 1937-12-31

Family

ID=

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