PL254989A1 - Drill bit - Google Patents

Drill bit

Info

Publication number
PL254989A1
PL254989A1 PL25498985A PL25498985A PL254989A1 PL 254989 A1 PL254989 A1 PL 254989A1 PL 25498985 A PL25498985 A PL 25498985A PL 25498985 A PL25498985 A PL 25498985A PL 254989 A1 PL254989 A1 PL 254989A1
Authority
PL
Poland
Prior art keywords
drill bit
drill
bit
Prior art date
Application number
PL25498985A
Other versions
PL149702B1 (en
Inventor
Jerzy Tarnowski
Original Assignee
Akad Gorniczo Hutnicza
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 Akad Gorniczo Hutnicza filed Critical Akad Gorniczo Hutnicza
Priority to PL25498985A priority Critical patent/PL149702B1/en
Publication of PL254989A1 publication Critical patent/PL254989A1/en
Publication of PL149702B1 publication Critical patent/PL149702B1/en

Links

PL25498985A 1985-08-13 1985-08-13 Drill bit PL149702B1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
PL25498985A PL149702B1 (en) 1985-08-13 1985-08-13 Drill bit

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
PL25498985A PL149702B1 (en) 1985-08-13 1985-08-13 Drill bit

Publications (2)

Publication Number Publication Date
PL254989A1 true PL254989A1 (en) 1987-02-23
PL149702B1 PL149702B1 (en) 1990-03-31

Family

ID=20027977

Family Applications (1)

Application Number Title Priority Date Filing Date
PL25498985A PL149702B1 (en) 1985-08-13 1985-08-13 Drill bit

Country Status (1)

Country Link
PL (1) PL149702B1 (en)

Also Published As

Publication number Publication date
PL149702B1 (en) 1990-03-31

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