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AU249796B2 - Improvements in core-lifting means for rotary drills - Google Patents
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AU249796B2 - Improvements in core-lifting means for rotary drills - Google Patents

Improvements in core-lifting means for rotary drills

Info

Publication number
AU249796B2
AU249796B2 AU6945/61A AU694561A AU249796B2 AU 249796 B2 AU249796 B2 AU 249796B2 AU 6945/61 A AU6945/61 A AU 6945/61A AU 694561 A AU694561 A AU 694561A AU 249796 B2 AU249796 B2 AU 249796B2
Authority
AU
Australia
Prior art keywords
core
lifting means
rotary drills
drills
rotary
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
AU6945/61A
Other versions
AU694561A (en
Inventor
Bernard Weldon and William Murdoch Adamson George
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.)
Uhidfilling Ltd
Original Assignee
Uhidfilling Ltd
Filing date
Publication date
Application filed by Uhidfilling Ltd filed Critical Uhidfilling Ltd
Application granted granted Critical
Publication of AU249796B2 publication Critical patent/AU249796B2/en
Publication of AU694561A publication Critical patent/AU694561A/en
Expired legal-status Critical Current

Links

AU6945/61A 1961-07-14 Improvements in core-lifting means for rotary drills Expired AU249796B2 (en)

Publications (2)

Publication Number Publication Date
AU249796B2 true AU249796B2 (en) 1963-05-02
AU694561A AU694561A (en) 1963-05-02

Family

ID=

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