CA859402A - Shield for constructing tunnels - Google Patents
Shield for constructing tunnelsInfo
- Publication number
- CA859402A CA859402A CA859402A CA859402DA CA859402A CA 859402 A CA859402 A CA 859402A CA 859402 A CA859402 A CA 859402A CA 859402D A CA859402D A CA 859402DA CA 859402 A CA859402 A CA 859402A
- Authority
- CA
- Canada
- Prior art keywords
- shield
- constructing tunnels
- tunnels
- constructing
- 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
Links
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
CA859402T |
Publications (1)
Publication Number | Publication Date |
---|---|
CA859402A true CA859402A (en) | 1970-12-29 |
Family
ID=36344856
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
CA859402A Expired CA859402A (en) | Shield for constructing tunnels |
Country Status (1)
Country | Link |
---|---|
CA (1) | CA859402A (en) |
-
0
- CA CA859402A patent/CA859402A/en not_active Expired
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