CA913916A - Construction of tunnels - Google Patents

Construction of tunnels

Info

Publication number
CA913916A
CA913916A CA913916A CA913916DA CA913916A CA 913916 A CA913916 A CA 913916A CA 913916 A CA913916 A CA 913916A CA 913916D A CA913916D A CA 913916DA CA 913916 A CA913916 A CA 913916A
Authority
CA
Canada
Prior art keywords
tunnels
construction
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
CA913916A
Inventor
C. Thomson James
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.)
TUBE HEADINGS Ltd
Original Assignee
TUBE HEADINGS Ltd
Publication date
Application granted granted Critical
Publication of CA913916A publication Critical patent/CA913916A/en
Expired legal-status Critical Current

Links

CA913916A Construction of tunnels Expired CA913916A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CA913916T

Publications (1)

Publication Number Publication Date
CA913916A true CA913916A (en) 1972-11-07

Family

ID=36421448

Family Applications (1)

Application Number Title Priority Date Filing Date
CA913916A Expired CA913916A (en) Construction of tunnels

Country Status (1)

Country Link
CA (1) CA913916A (en)

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