CA1008843A - Internally pressurized load supporting mast - Google Patents
Internally pressurized load supporting mastInfo
- Publication number
- CA1008843A CA1008843A CA203,987A CA203987A CA1008843A CA 1008843 A CA1008843 A CA 1008843A CA 203987 A CA203987 A CA 203987A CA 1008843 A CA1008843 A CA 1008843A
- Authority
- CA
- Canada
- Prior art keywords
- load supporting
- internally pressurized
- supporting mast
- pressurized load
- mast
- 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
Priority Applications (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
CA203,987A CA1008843A (en) | 1974-07-03 | 1974-07-03 | Internally pressurized load supporting mast |
CA269,995A CA1021317A (en) | 1974-07-03 | 1977-01-19 | Internally pressurized load supporting mast |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
CA203,987A CA1008843A (en) | 1974-07-03 | 1974-07-03 | Internally pressurized load supporting mast |
Publications (1)
Publication Number | Publication Date |
---|---|
CA1008843A true CA1008843A (en) | 1977-04-19 |
Family
ID=4100575
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
CA203,987A Expired CA1008843A (en) | 1974-07-03 | 1974-07-03 | Internally pressurized load supporting mast |
Country Status (1)
Country | Link |
---|---|
CA (1) | CA1008843A (en) |
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN103256009A (en) * | 2013-04-25 | 2013-08-21 | 南阳二机石油装备(集团)有限公司 | Door type derrick with crown block adjustable in transverse direction and longitudinal direction |
CN112209292A (en) * | 2020-10-29 | 2021-01-12 | 德清世锦智能科技有限公司 | Building site work piece lifting machinery device |
-
1974
- 1974-07-03 CA CA203,987A patent/CA1008843A/en not_active Expired
Cited By (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN103256009A (en) * | 2013-04-25 | 2013-08-21 | 南阳二机石油装备(集团)有限公司 | Door type derrick with crown block adjustable in transverse direction and longitudinal direction |
CN103256009B (en) * | 2013-04-25 | 2015-09-23 | 南阳二机石油装备(集团)有限公司 | The door type derrick that a kind of overhead traveling crane can laterally and longitudinally regulate |
CN112209292A (en) * | 2020-10-29 | 2021-01-12 | 德清世锦智能科技有限公司 | Building site work piece lifting machinery device |
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