AU152030B2 - Improvements in or relating to method of and apparatus for forming underground openings - Google Patents

Improvements in or relating to method of and apparatus for forming underground openings

Info

Publication number
AU152030B2
AU152030B2 AU346/51A AU34651A AU152030B2 AU 152030 B2 AU152030 B2 AU 152030B2 AU 346/51 A AU346/51 A AU 346/51A AU 34651 A AU34651 A AU 34651A AU 152030 B2 AU152030 B2 AU 152030B2
Authority
AU
Australia
Prior art keywords
relating
forming underground
underground openings
openings
forming
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
AU346/51A
Other versions
AU34651A (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.)
International Basic Economy Corp
Original Assignee
International Basic Economy Corp
Filing date
Publication date
Application filed by International Basic Economy Corp filed Critical International Basic Economy Corp
Application granted granted Critical
Publication of AU152030B2 publication Critical patent/AU152030B2/en
Publication of AU34651A publication Critical patent/AU34651A/en
Expired legal-status Critical Current

Links

AU346/51A 1951-01-19 Improvements in or relating to method of and apparatus for forming underground openings Expired AU152030B2 (en)

Publications (2)

Publication Number Publication Date
AU152030B2 true AU152030B2 (en) 1951-03-22
AU34651A AU34651A (en) 1951-03-22

Family

ID=

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