AU423117A - Improvements in rock drills - Google Patents

Improvements in rock drills

Info

Publication number
AU423117A
AU423117A AU4231/17A AU423117A AU423117A AU 423117 A AU423117 A AU 423117A AU 4231/17 A AU4231/17 A AU 4231/17A AU 423117 A AU423117 A AU 423117A AU 423117 A AU423117 A AU 423117A
Authority
AU
Australia
Prior art keywords
rock drills
drills
rock
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
Application number
AU4231/17A
Other versions
AU423117B (en
Inventor
Joynes Jorgensen Thomas
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Individual
Original Assignee
Individual
Filing date
Publication date
Application filed by Individual filed Critical Individual
Priority to AU4231/17A priority Critical patent/AU423117A/en
Publication of AU423117B publication Critical patent/AU423117B/en
Publication of AU423117A publication Critical patent/AU423117A/en
Expired legal-status Critical Current

Links

AU4231/17A 1917-06-08 Improvements in rock drills Expired AU423117A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
AU4231/17A AU423117A (en) 1917-06-08 Improvements in rock drills

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
AU4231/17A AU423117A (en) 1917-06-08 Improvements in rock drills

Publications (2)

Publication Number Publication Date
AU423117B AU423117B (en) 1918-08-13
AU423117A true AU423117A (en) 1918-08-13

Family

ID=

Similar Documents

Publication Publication Date Title
AU423117A (en) Improvements in rock drills
CA176420A (en) Well drilling bit
AU423117B (en) Improvements in rock drills
CA184525A (en) Rock drill
CA185513A (en) Rock drill
CA187400A (en) Rock drill
CA181966A (en) Hand drill
CA177034A (en) Well drill
AU204416A (en) Improvements in rock drills
CA187592A (en) Anger bit
CA179212A (en) Drill
CA183525A (en) Drill
CA185741A (en) Drill
CA185910A (en) Rock drill mechanism
CA177351A (en) Bit
CA181211A (en) Bit
CA176709A (en) Drill sharpener
CA179979A (en) Drill sharpener
CA178591A (en) Earth boring machine
CA181557A (en) Coal drill
CA180652A (en) Grain drill
CA181352A (en) Bit brace
AU691318A (en) Improvements in rock drills
CA194586A (en) Drill for stone
CA182103A (en) Boring tool