AU454109B2 - - Google Patents

Info

Publication number
AU454109B2
AU454109B2 AU5973969A AU5973969A AU454109B2 AU 454109 B2 AU454109 B2 AU 454109B2 AU 5973969 A AU5973969 A AU 5973969A AU 5973969 A AU5973969 A AU 5973969A AU 454109 B2 AU454109 B2 AU 454109B2
Authority
AU
Australia
Legal status (The legal status 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 status listed.)
Expired
Application number
AU5973969A
Other versions
AU5973969A (en
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 filed Critical
Priority to AU5973969A priority Critical patent/AU454109B2/xx
Publication of AU5973969A publication Critical patent/AU5973969A/en
Application granted granted Critical
Publication of AU454109B2 publication Critical patent/AU454109B2/xx
Expired legal-status Critical Current

Links

Classifications

    • EFIXED CONSTRUCTIONS
    • E21EARTH DRILLING; MINING
    • E21BEARTH DRILLING, e.g. DEEP DRILLING; OBTAINING OIL, GAS, WATER, SOLUBLE OR MELTABLE MATERIALS OR A SLURRY OF MINERALS FROM WELLS
    • E21B10/00Drill bits
    • E21B10/36Percussion drill bits
    • E21B10/40Percussion drill bits with leading portion
    • EFIXED CONSTRUCTIONS
    • E21EARTH DRILLING; MINING
    • E21BEARTH DRILLING, e.g. DEEP DRILLING; OBTAINING OIL, GAS, WATER, SOLUBLE OR MELTABLE MATERIALS OR A SLURRY OF MINERALS FROM WELLS
    • E21B10/00Drill bits
    • E21B10/62Drill bits characterised by parts, e.g. cutting elements, which are detachable or adjustable
AU5973969A 1969-08-20 1969-08-20 Expired AU454109B2 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
AU5973969A AU454109B2 (en) 1969-08-20 1969-08-20

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
AU5973969A AU454109B2 (en) 1969-08-20 1969-08-20

Publications (2)

Publication Number Publication Date
AU5973969A AU5973969A (en) 1971-02-25
AU454109B2 true AU454109B2 (en) 1974-10-04

Family

ID=3744977

Family Applications (1)

Application Number Title Priority Date Filing Date
AU5973969A Expired AU454109B2 (en) 1969-08-20 1969-08-20

Country Status (1)

Country Link
AU (1) AU454109B2 (en)

Also Published As

Publication number Publication date
AU5973969A (en) 1971-02-25

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