AU202373B2 - Improvements in and relating toearth-boring tools - Google Patents

Improvements in and relating toearth-boring tools

Info

Publication number
AU202373B2
AU202373B2 AU8691/55A AU869155A AU202373B2 AU 202373 B2 AU202373 B2 AU 202373B2 AU 8691/55 A AU8691/55 A AU 8691/55A AU 869155 A AU869155 A AU 869155A AU 202373 B2 AU202373 B2 AU 202373B2
Authority
AU
Australia
Prior art keywords
boring tools
toearth
relating
relating toearth
boring
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
AU8691/55A
Other versions
AU869155A (en
Inventor
Ian Matthews and "Philip Ian Lewin Walter
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.)
National Research Development Corp UK
Original Assignee
National Research Development Corp UK
Filing date
Publication date
Application filed by National Research Development Corp UK filed Critical National Research Development Corp UK
Application granted granted Critical
Publication of AU869155A publication Critical patent/AU869155A/en
Publication of AU202373B2 publication Critical patent/AU202373B2/en
Expired legal-status Critical Current

Links

AU8691/55A 1955-04-28 Improvements in and relating toearth-boring tools Expired AU202373B2 (en)

Publications (2)

Publication Number Publication Date
AU869155A AU869155A (en) 1955-11-03
AU202373B2 true AU202373B2 (en) 1955-11-03

Family

ID=

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