CA897728A - Hard rock tunneling machine - Google Patents
Hard rock tunneling machineInfo
- Publication number
- CA897728A CA897728A CA897728A CA897728DA CA897728A CA 897728 A CA897728 A CA 897728A CA 897728 A CA897728 A CA 897728A CA 897728D A CA897728D A CA 897728DA CA 897728 A CA897728 A CA 897728A
- Authority
- CA
- Canada
- Prior art keywords
- hard rock
- tunneling machine
- rock tunneling
- machine
- hard
- 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 |
---|---|---|---|
CA897728T |
Publications (1)
Publication Number | Publication Date |
---|---|
CA897728A true CA897728A (en) | 1972-04-11 |
Family
ID=36403640
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
CA897728A Expired CA897728A (en) | Hard rock tunneling machine |
Country Status (1)
Country | Link |
---|---|
CA (1) | CA897728A (en) |
-
0
- CA CA897728A patent/CA897728A/en not_active Expired
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