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AU200668B2 - Improvements in or relating toa method of and apparatus for tunnelling - Google Patents

Improvements in or relating toa method of and apparatus for tunnelling

Info

Publication number
AU200668B2
AU200668B2 AU4921/54A AU492154A AU200668B2 AU 200668 B2 AU200668 B2 AU 200668B2 AU 4921/54 A AU4921/54 A AU 4921/54A AU 492154 A AU492154 A AU 492154A AU 200668 B2 AU200668 B2 AU 200668B2
Authority
AU
Australia
Prior art keywords
tunnelling
toa method
relating toa
relating
toa
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
AU4921/54A
Other versions
AU492154A (en
Inventor
Kenneth Bridge Eric
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
Application granted granted Critical
Publication of AU492154A publication Critical patent/AU492154A/en
Publication of AU200668B2 publication Critical patent/AU200668B2/en
Expired legal-status Critical Current

Links

AU4921/54A 1954-11-24 Improvements in or relating toa method of and apparatus for tunnelling Expired AU200668B2 (en)

Publications (2)

Publication Number Publication Date
AU492154A AU492154A (en) 1955-05-26
AU200668B2 true AU200668B2 (en) 1955-05-26

Family

ID=

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