PL232721A1 - Drilling tool for drilling in very hard and highly abrasive rocks - Google Patents

Drilling tool for drilling in very hard and highly abrasive rocks

Info

Publication number
PL232721A1
PL232721A1 PL23272181A PL23272181A PL232721A1 PL 232721 A1 PL232721 A1 PL 232721A1 PL 23272181 A PL23272181 A PL 23272181A PL 23272181 A PL23272181 A PL 23272181A PL 232721 A1 PL232721 A1 PL 232721A1
Authority
PL
Poland
Prior art keywords
drilling
hard
highly abrasive
abrasive rocks
drilling tool
Prior art date
Application number
PL23272181A
Other versions
PL137638B1 (en
Inventor
Stanislaw Wojnar
Jerzy Czaja
Original Assignee
Maszyn Wiertniczych I Gorniczy
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 Maszyn Wiertniczych I Gorniczy filed Critical Maszyn Wiertniczych I Gorniczy
Priority to PL23272181A priority Critical patent/PL137638B1/en
Publication of PL232721A1 publication Critical patent/PL232721A1/en
Publication of PL137638B1 publication Critical patent/PL137638B1/en

Links

PL23272181A 1981-08-18 1981-08-18 Drilling tool for drilling very hard and strongly abrading rocks PL137638B1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
PL23272181A PL137638B1 (en) 1981-08-18 1981-08-18 Drilling tool for drilling very hard and strongly abrading rocks

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
PL23272181A PL137638B1 (en) 1981-08-18 1981-08-18 Drilling tool for drilling very hard and strongly abrading rocks

Publications (2)

Publication Number Publication Date
PL232721A1 true PL232721A1 (en) 1983-02-28
PL137638B1 PL137638B1 (en) 1986-07-31

Family

ID=20009694

Family Applications (1)

Application Number Title Priority Date Filing Date
PL23272181A PL137638B1 (en) 1981-08-18 1981-08-18 Drilling tool for drilling very hard and strongly abrading rocks

Country Status (1)

Country Link
PL (1) PL137638B1 (en)

Also Published As

Publication number Publication date
PL137638B1 (en) 1986-07-31

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