FR558409A - water level square - Google Patents
water level squareInfo
- Publication number
- FR558409A FR558409A FR558409DA FR558409A FR 558409 A FR558409 A FR 558409A FR 558409D A FR558409D A FR 558409DA FR 558409 A FR558409 A FR 558409A
- Authority
- FR
- France
- Prior art keywords
- water level
- level square
- square
- water
- level
- 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
- G01B—MEASURING LENGTH, THICKNESS OR SIMILAR LINEAR DIMENSIONS; MEASURING ANGLES; MEASURING AREAS; MEASURING IRREGULARITIES OF SURFACES OR CONTOURS
- G01B3/00—Measuring instruments characterised by the use of mechanical techniques
- G01B3/56—Gauges for measuring angles or tapers, e.g. conical calipers
- G01B3/566—Squares
Landscapes
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
FR558409T | 1922-11-08 |
Publications (1)
Publication Number | Publication Date |
---|---|
FR558409A true FR558409A (en) | 1923-08-27 |
Family
ID=8941566
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
FR558409D Expired FR558409A (en) | 1922-11-08 | 1922-11-08 | water level square |
Country Status (1)
Country | Link |
---|---|
FR (1) | FR558409A (en) |
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US4910876A (en) * | 1989-09-07 | 1990-03-27 | Channell John F | Level attachment |
US6842640B2 (en) * | 1995-06-02 | 2005-01-11 | Alza Corporation | Electrotransport delivery device with voltage boosting circuit |
-
1922
- 1922-11-08 FR FR558409D patent/FR558409A/en not_active Expired
Cited By (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US4910876A (en) * | 1989-09-07 | 1990-03-27 | Channell John F | Level attachment |
US6842640B2 (en) * | 1995-06-02 | 2005-01-11 | Alza Corporation | Electrotransport delivery device with voltage boosting circuit |
US7708731B2 (en) | 1995-06-02 | 2010-05-04 | Alza Corporation | Electrotransport delivery device with voltage boosting circuit |
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