CA997137A - Hydrostatic leveling apparatus with control operator - Google Patents
Hydrostatic leveling apparatus with control operatorInfo
- Publication number
- CA997137A CA997137A CA195,214A CA195214A CA997137A CA 997137 A CA997137 A CA 997137A CA 195214 A CA195214 A CA 195214A CA 997137 A CA997137 A CA 997137A
- Authority
- CA
- Canada
- Prior art keywords
- control operator
- leveling apparatus
- hydrostatic leveling
- hydrostatic
- operator
- 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
Classifications
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01C—MEASURING DISTANCES, LEVELS OR BEARINGS; SURVEYING; NAVIGATION; GYROSCOPIC INSTRUMENTS; PHOTOGRAMMETRY OR VIDEOGRAMMETRY
- G01C5/00—Measuring height; Measuring distances transverse to line of sight; Levelling between separated points; Surveyors' levels
- G01C5/04—Hydrostatic levelling, i.e. by flexibly interconnected liquid containers at separated points
Landscapes
- Physics & Mathematics (AREA)
- Engineering & Computer Science (AREA)
- General Physics & Mathematics (AREA)
- Radar, Positioning & Navigation (AREA)
- Remote Sensing (AREA)
- Devices For Dispensing Beverages (AREA)
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US00342515A US3835548A (en) | 1973-03-19 | 1973-03-19 | Hydrostatic leveling apparatus with control operator |
Publications (1)
Publication Number | Publication Date |
---|---|
CA997137A true CA997137A (en) | 1976-09-21 |
Family
ID=23342168
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
CA195,214A Expired CA997137A (en) | 1973-03-19 | 1974-03-18 | Hydrostatic leveling apparatus with control operator |
Country Status (2)
Country | Link |
---|---|
US (1) | US3835548A (en) |
CA (1) | CA997137A (en) |
Families Citing this family (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US5101571A (en) * | 1989-12-18 | 1992-04-07 | Albert Bertoti | Hydrostatic plumber's level |
GB2283818A (en) * | 1993-11-10 | 1995-05-17 | John Ashworth | Level-indicating device |
Family Cites Families (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US3310880A (en) * | 1964-10-29 | 1967-03-28 | Abner W Watts | Gravity type hydraulic amplifier precise level |
US3645135A (en) * | 1970-08-24 | 1972-02-29 | Schwien Eng Inc | Mercury system |
-
1973
- 1973-03-19 US US00342515A patent/US3835548A/en not_active Expired - Lifetime
-
1974
- 1974-03-18 CA CA195,214A patent/CA997137A/en not_active Expired
Also Published As
Publication number | Publication date |
---|---|
US3835548A (en) | 1974-09-17 |
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