GR3000225T3 - Method of and apparatus for providing an underground tunnel - Google Patents

Method of and apparatus for providing an underground tunnel

Info

Publication number
GR3000225T3
GR3000225T3 GR89400231T GR890400231T GR3000225T3 GR 3000225 T3 GR3000225 T3 GR 3000225T3 GR 89400231 T GR89400231 T GR 89400231T GR 890400231 T GR890400231 T GR 890400231T GR 3000225 T3 GR3000225 T3 GR 3000225T3
Authority
GR
Greece
Prior art keywords
providing
underground tunnel
underground
tunnel
Prior art date
Application number
GR89400231T
Other languages
Greek (el)
Inventor
Glen Baker
Albert W Chau
John E Mercer
Original Assignee
Flowmole Corp
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 US06/866,241 external-priority patent/US4714118A/en
Application filed by Flowmole Corp filed Critical Flowmole Corp
Publication of GR3000225T3 publication Critical patent/GR3000225T3/en

Links

GR89400231T 1986-05-22 1989-11-24 Method of and apparatus for providing an underground tunnel GR3000225T3 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US06/866,241 US4714118A (en) 1986-05-22 1986-05-22 Technique for steering and monitoring the orientation of a powered underground boring device
EP87304537A EP0247799B1 (en) 1986-05-22 1987-05-21 Method of and apparatus for providing an underground tunnel

Publications (1)

Publication Number Publication Date
GR3000225T3 true GR3000225T3 (en) 1991-03-15

Family

ID=26110286

Family Applications (1)

Application Number Title Priority Date Filing Date
GR89400231T GR3000225T3 (en) 1986-05-22 1989-11-24 Method of and apparatus for providing an underground tunnel

Country Status (3)

Country Link
AT (1) ATE48180T1 (en)
DE (1) DE3761030D1 (en)
GR (1) GR3000225T3 (en)

Also Published As

Publication number Publication date
DE3761030D1 (en) 1989-12-28
ATE48180T1 (en) 1989-12-15

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