AU141988B2 - Improvements in rock drilling tools having inserted formations - Google Patents

Improvements in rock drilling tools having inserted formations

Info

Publication number
AU141988B2
AU141988B2 AU24585/48A AU2458548A AU141988B2 AU 141988 B2 AU141988 B2 AU 141988B2 AU 24585/48 A AU24585/48 A AU 24585/48A AU 2458548 A AU2458548 A AU 2458548A AU 141988 B2 AU141988 B2 AU 141988B2
Authority
AU
Australia
Prior art keywords
formations
rock drilling
drilling tools
tools
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
AU24585/48A
Other versions
AU2458548A (en
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.)
Hard Metals Ltd
Original Assignee
Hard Metals Ltd
Filing date
Publication date
Application filed by Hard Metals Ltd filed Critical Hard Metals Ltd
Application granted granted Critical
Publication of AU2458548A publication Critical patent/AU2458548A/en
Publication of AU141988B2 publication Critical patent/AU141988B2/en
Expired legal-status Critical Current

Links

AU24585/48A 1948-11-30 Improvements in rock drilling tools having inserted formations Expired AU141988B2 (en)

Publications (2)

Publication Number Publication Date
AU2458548A AU2458548A (en) 1949-01-13
AU141988B2 true AU141988B2 (en) 1949-01-13

Family

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