CA904748A - Inflatable safety shut-off for well bores or other openings - Google Patents
Inflatable safety shut-off for well bores or other openingsInfo
- Publication number
- CA904748A CA904748A CA904748A CA904748DA CA904748A CA 904748 A CA904748 A CA 904748A CA 904748 A CA904748 A CA 904748A CA 904748D A CA904748D A CA 904748DA CA 904748 A CA904748 A CA 904748A
- Authority
- CA
- Canada
- Prior art keywords
- openings
- well bores
- safety shut
- inflatable safety
- inflatable
- 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 |
---|---|---|---|
CA904748T |
Publications (1)
Publication Number | Publication Date |
---|---|
CA904748A true CA904748A (en) | 1972-07-11 |
Family
ID=36412577
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
CA904748A Expired CA904748A (en) | Inflatable safety shut-off for well bores or other openings |
Country Status (1)
Country | Link |
---|---|
CA (1) | CA904748A (en) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US5058903A (en) * | 1989-06-16 | 1991-10-22 | Redpath Raiseboring Limited | Drill rod seal |
-
0
- CA CA904748A patent/CA904748A/en not_active Expired
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US5058903A (en) * | 1989-06-16 | 1991-10-22 | Redpath Raiseboring Limited | Drill rod seal |
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