PL270609A1 - Drag bit - Google Patents

Drag bit

Info

Publication number
PL270609A1
PL270609A1 PL27060988A PL27060988A PL270609A1 PL 270609 A1 PL270609 A1 PL 270609A1 PL 27060988 A PL27060988 A PL 27060988A PL 27060988 A PL27060988 A PL 27060988A PL 270609 A1 PL270609 A1 PL 270609A1
Authority
PL
Poland
Prior art keywords
drag bit
drag
bit
Prior art date
Application number
PL27060988A
Other versions
PL157666B1 (en
Inventor
Jan Onoszko
Ryszard Wojtasiewicz
Ryszard Kaszak
Ryszard Lebiedzki
Original Assignee
Przed Robot Wiertniczych
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 Przed Robot Wiertniczych filed Critical Przed Robot Wiertniczych
Priority to PL27060988A priority Critical patent/PL157666B1/en
Publication of PL270609A1 publication Critical patent/PL270609A1/en
Publication of PL157666B1 publication Critical patent/PL157666B1/en

Links

PL27060988A 1988-02-11 1988-02-11 Drag bit PL157666B1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
PL27060988A PL157666B1 (en) 1988-02-11 1988-02-11 Drag bit

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
PL27060988A PL157666B1 (en) 1988-02-11 1988-02-11 Drag bit

Publications (2)

Publication Number Publication Date
PL270609A1 true PL270609A1 (en) 1989-08-21
PL157666B1 PL157666B1 (en) 1992-06-30

Family

ID=20040570

Family Applications (1)

Application Number Title Priority Date Filing Date
PL27060988A PL157666B1 (en) 1988-02-11 1988-02-11 Drag bit

Country Status (1)

Country Link
PL (1) PL157666B1 (en)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN102134850A (en) * 2011-01-08 2011-07-27 洪子云 Soil-sucking hole-forming bit of diamond drill

Also Published As

Publication number Publication date
PL157666B1 (en) 1992-06-30

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