CA318160A - Bouclier a tunnels - Google Patents

Bouclier a tunnels

Info

Publication number
CA318160A
CA318160A CA318160A CA318160DA CA318160A CA 318160 A CA318160 A CA 318160A CA 318160 A CA318160 A CA 318160A CA 318160D A CA318160D A CA 318160DA CA 318160 A CA318160 A CA 318160A
Authority
CA
Canada
Prior art keywords
tunnelling shield
tunnelling
shield
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
CA318160A
Other languages
English (en)
Inventor
Greely Barber Horace
Burritt Muckleston Hugh
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
Publication date
Application granted granted Critical
Publication of CA318160A publication Critical patent/CA318160A/fr
Expired legal-status Critical Current

Links

CA318160A Bouclier a tunnels Expired CA318160A (fr)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CA318160T

Publications (1)

Publication Number Publication Date
CA318160A true CA318160A (fr) 1931-12-22

Family

ID=35278716

Family Applications (1)

Application Number Title Priority Date Filing Date
CA318160A Expired CA318160A (fr) Bouclier a tunnels

Country Status (1)

Country Link
CA (1) CA318160A (fr)

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