NO117509B - - Google Patents

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Publication number
NO117509B
NO117509B NO15504764A NO15504764A NO117509B NO 117509 B NO117509 B NO 117509B NO 15504764 A NO15504764 A NO 15504764A NO 15504764 A NO15504764 A NO 15504764A NO 117509 B NO117509 B NO 117509B
Authority
NO
Norway
Prior art keywords
zones
bit
wear
zone
rock drill
Prior art date
Application number
NO15504764A
Other languages
English (en)
Norwegian (no)
Inventor
R Buell
Original Assignee
Buell Manufacturing Co
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 Buell Manufacturing Co filed Critical Buell Manufacturing Co
Priority to NO15504764A priority Critical patent/NO117509B/no
Publication of NO117509B publication Critical patent/NO117509B/no

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  • Earth Drilling (AREA)
NO15504764A 1964-10-07 1964-10-07 NO117509B (enrdf_load_stackoverflow)

Priority Applications (1)

Application Number Priority Date Filing Date Title
NO15504764A NO117509B (enrdf_load_stackoverflow) 1964-10-07 1964-10-07

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
NO15504764A NO117509B (enrdf_load_stackoverflow) 1964-10-07 1964-10-07

Publications (1)

Publication Number Publication Date
NO117509B true NO117509B (enrdf_load_stackoverflow) 1969-08-18

Family

ID=19909050

Family Applications (1)

Application Number Title Priority Date Filing Date
NO15504764A NO117509B (enrdf_load_stackoverflow) 1964-10-07 1964-10-07

Country Status (1)

Country Link
NO (1) NO117509B (enrdf_load_stackoverflow)

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