AU2243629A - Improvements in or relating to drill-steels - Google Patents

Improvements in or relating to drill-steels

Info

Publication number
AU2243629A
AU2243629A AU22436/29A AU2243629A AU2243629A AU 2243629 A AU2243629 A AU 2243629A AU 22436/29 A AU22436/29 A AU 22436/29A AU 2243629 A AU2243629 A AU 2243629A AU 2243629 A AU2243629 A AU 2243629A
Authority
AU
Australia
Prior art keywords
steels
drill
relating
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
AU22436/29A
Inventor
Mitchell Hugh
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.)
Holman Brothers Ltd
Original Assignee
Holman Brothers Ltd
Filing date
Publication date
Application filed by Holman Brothers Ltd filed Critical Holman Brothers Ltd
Publication of AU2243629A publication Critical patent/AU2243629A/en
Expired legal-status Critical Current

Links

AU22436/29A 1929-09-16 Improvements in or relating to drill-steels Expired AU2243629A (en)

Publications (1)

Publication Number Publication Date
AU2243629A true AU2243629A (en) 1930-03-18

Family

ID=

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
AU2446271A (en) * 1970-01-21 1972-07-27 Ingersoll-Rand Company Improvements in or relating to tools for use in percussive machines

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
AU2446271A (en) * 1970-01-21 1972-07-27 Ingersoll-Rand Company Improvements in or relating to tools for use in percussive machines

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