ZA917397B - Tapered rock drill connection - Google Patents

Tapered rock drill connection

Info

Publication number
ZA917397B
ZA917397B ZA917397A ZA917397A ZA917397B ZA 917397 B ZA917397 B ZA 917397B ZA 917397 A ZA917397 A ZA 917397A ZA 917397 A ZA917397 A ZA 917397A ZA 917397 B ZA917397 B ZA 917397B
Authority
ZA
South Africa
Prior art keywords
tapered
rock drill
drill connection
connection
rock
Prior art date
Application number
ZA917397A
Inventor
Frederick George Holden
George Holden Frederick
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 ZA917397A priority Critical patent/ZA917397B/en
Publication of ZA917397B publication Critical patent/ZA917397B/en

Links

ZA917397A 1990-09-17 1991-09-17 Tapered rock drill connection ZA917397B (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
ZA917397A ZA917397B (en) 1990-09-17 1991-09-17 Tapered rock drill connection

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
ZA907391 1990-09-17
ZA917397A ZA917397B (en) 1990-09-17 1991-09-17 Tapered rock drill connection

Publications (1)

Publication Number Publication Date
ZA917397B true ZA917397B (en) 1992-05-27

Family

ID=27141441

Family Applications (1)

Application Number Title Priority Date Filing Date
ZA917397A ZA917397B (en) 1990-09-17 1991-09-17 Tapered rock drill connection

Country Status (1)

Country Link
ZA (1) ZA917397B (en)

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