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AU539539A - Improvements in pneumatically actuated rock drills of percussion type - Google Patents

Improvements in pneumatically actuated rock drills of percussion type

Info

Publication number
AU539539A
AU539539A AU5395/39A AU539539A AU539539A AU 539539 A AU539539 A AU 539539A AU 5395/39 A AU5395/39 A AU 5395/39A AU 539539 A AU539539 A AU 539539A AU 539539 A AU539539 A AU 539539A
Authority
AU
Australia
Prior art keywords
pneumatically actuated
rock drills
percussion type
actuated rock
percussion
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
AU5395/39A
Other versions
AU112467B2 (en
Inventor
Sheard Joseph
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
Application granted granted Critical
Publication of AU112467B2 publication Critical patent/AU112467B2/en
Publication of AU539539A publication Critical patent/AU539539A/en
Expired legal-status Critical Current

Links

AU5395/39A 1939-12-05 Improvements in pneumatically actuated rock drills of percussion type Expired AU112467B2 (en)

Publications (2)

Publication Number Publication Date
AU112467B2 AU112467B2 (en) 1941-02-20
AU539539A true AU539539A (en) 1941-02-20

Family

ID=

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