AU434462B2 - Retractable drill bits - Google Patents
Retractable drill bitsInfo
- Publication number
- AU434462B2 AU434462B2 AU21039/70A AU2103970A AU434462B2 AU 434462 B2 AU434462 B2 AU 434462B2 AU 21039/70 A AU21039/70 A AU 21039/70A AU 2103970 A AU2103970 A AU 2103970A AU 434462 B2 AU434462 B2 AU 434462B2
- Authority
- AU
- Australia
- Prior art keywords
- drill bits
- retractable drill
- retractable
- bits
- drill
- Prior art date
- 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
Links
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
USUS3971 | 1970-01-19 |
Publications (2)
Publication Number | Publication Date |
---|---|
AU434462B2 true AU434462B2 (en) | 1972-04-20 |
AU2103970A AU2103970A (en) | 1972-04-20 |
Family
ID=
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