AU481159B2 - Upward tunneling - Google Patents

Upward tunneling

Info

Publication number
AU481159B2
AU481159B2 AU62297/73A AU6229773A AU481159B2 AU 481159 B2 AU481159 B2 AU 481159B2 AU 62297/73 A AU62297/73 A AU 62297/73A AU 6229773 A AU6229773 A AU 6229773A AU 481159 B2 AU481159 B2 AU 481159B2
Authority
AU
Australia
Prior art keywords
tunneling
upward
upward tunneling
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
AU62297/73A
Other versions
AU6229773A (en
Inventor
H. Crane And Tynan H. Fiske Clayton
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.)
Robbins Co
Original Assignee
Robbins Co
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Priority claimed from US00305912A external-priority patent/US3840272A/en
Application filed by Robbins Co filed Critical Robbins Co
Application granted granted Critical
Publication of AU481159B2 publication Critical patent/AU481159B2/en
Publication of AU6229773A publication Critical patent/AU6229773A/en
Expired legal-status Critical Current

Links

AU62297/73A 1972-11-13 1973-11-08 Upward tunneling Expired AU481159B2 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
USUS305,912 1972-11-13
US00305912A US3840272A (en) 1972-11-13 1972-11-13 Upward tunneling

Publications (2)

Publication Number Publication Date
AU481159B2 true AU481159B2 (en) 1975-05-08
AU6229773A AU6229773A (en) 1975-05-08

Family

ID=

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