ZA826920B - Percussive rock drilling apparatus - Google Patents

Percussive rock drilling apparatus

Info

Publication number
ZA826920B
ZA826920B ZA826920A ZA826920A ZA826920B ZA 826920 B ZA826920 B ZA 826920B ZA 826920 A ZA826920 A ZA 826920A ZA 826920 A ZA826920 A ZA 826920A ZA 826920 B ZA826920 B ZA 826920B
Authority
ZA
South Africa
Prior art keywords
drilling apparatus
rock drilling
percussive rock
percussive
rock
Prior art date
Application number
ZA826920A
Inventor
John Martin Holmberg
Original Assignee
Boart Int Ltd
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 Boart Int Ltd filed Critical Boart Int Ltd
Priority to ZA826920A priority Critical patent/ZA826920B/en
Publication of ZA826920B publication Critical patent/ZA826920B/en

Links

ZA826920A 1981-09-21 1982-09-21 Percussive rock drilling apparatus ZA826920B (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
ZA826920A ZA826920B (en) 1981-09-21 1982-09-21 Percussive rock drilling apparatus

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
ZA816534 1981-09-21
ZA826920A ZA826920B (en) 1981-09-21 1982-09-21 Percussive rock drilling apparatus

Publications (1)

Publication Number Publication Date
ZA826920B true ZA826920B (en) 1983-07-27

Family

ID=27133229

Family Applications (1)

Application Number Title Priority Date Filing Date
ZA826920A ZA826920B (en) 1981-09-21 1982-09-21 Percussive rock drilling apparatus

Country Status (1)

Country Link
ZA (1) ZA826920B (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
AU736016B2 (en) * 1996-06-04 2001-07-26 Jennmar Corporation A method for reinforcing rock with a tendon

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
AU736016B2 (en) * 1996-06-04 2001-07-26 Jennmar Corporation A method for reinforcing rock with a tendon

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