AU42711A - Improvements on or appaertaining to the drills, bits or tools for machine or hand rock drilling - Google Patents

Improvements on or appaertaining to the drills, bits or tools for machine or hand rock drilling

Info

Publication number
AU42711A
AU42711A AU427/11A AU42711A AU42711A AU 42711 A AU42711 A AU 42711A AU 427/11 A AU427/11 A AU 427/11A AU 42711 A AU42711 A AU 42711A AU 42711 A AU42711 A AU 42711A
Authority
AU
Australia
Prior art keywords
appaertaining
drills
bits
tools
machine
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
AU427/11A
Inventor
Tippett Elisha
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
Publication of AU42711A publication Critical patent/AU42711A/en
Expired legal-status Critical Current

Links

AU427/11A 1911-02-20 Improvements on or appaertaining to the drills, bits or tools for machine or hand rock drilling Expired AU42711A (en)

Publications (1)

Publication Number Publication Date
AU42711A true AU42711A (en) 1911-04-11

Family

ID=

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