GB172621A - Improvements in refractometers - Google Patents
Improvements in refractometersInfo
- Publication number
- GB172621A GB172621A GB31747/21A GB3174721A GB172621A GB 172621 A GB172621 A GB 172621A GB 31747/21 A GB31747/21 A GB 31747/21A GB 3174721 A GB3174721 A GB 3174721A GB 172621 A GB172621 A GB 172621A
- Authority
- GB
- United Kingdom
- Prior art keywords
- refractometers
- 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
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N21/00—Investigating or analysing materials by the use of optical means, i.e. using sub-millimetre waves, infrared, visible or ultraviolet light
- G01N21/17—Systems in which incident light is modified in accordance with the properties of the material investigated
- G01N21/41—Refractivity; Phase-affecting properties, e.g. optical path length
- G01N21/43—Refractivity; Phase-affecting properties, e.g. optical path length by measuring critical angle
Landscapes
- Physics & Mathematics (AREA)
- Health & Medical Sciences (AREA)
- Life Sciences & Earth Sciences (AREA)
- Chemical & Material Sciences (AREA)
- Analytical Chemistry (AREA)
- Biochemistry (AREA)
- General Health & Medical Sciences (AREA)
- General Physics & Mathematics (AREA)
- Immunology (AREA)
- Pathology (AREA)
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE172621X | 1920-12-09 |
Publications (1)
Publication Number | Publication Date |
---|---|
GB172621A true GB172621A (en) | 1922-03-16 |
Family
ID=5690153
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
GB31747/21A Expired GB172621A (en) | 1920-12-09 | 1921-11-28 | Improvements in refractometers |
Country Status (1)
Country | Link |
---|---|
GB (1) | GB172621A (en) |
-
1921
- 1921-11-28 GB GB31747/21A patent/GB172621A/en not_active Expired
Similar Documents
Publication | Publication Date | Title |
---|---|---|
GB178290A (en) | Improvements in refractometers | |
GB167948A (en) | Improvements in posts | |
GB172621A (en) | Improvements in refractometers | |
GB168071A (en) | Improvements in stereogrammetric apparatus | |
GB175492A (en) | Improvements in kaleidoscopes | |
GB165657A (en) | Improvements in lenses | |
GB166344A (en) | New means in colour-kinematography | |
AU15655B1 (en) | Improvements in filters | |
AU1695220B (en) | Improvements in flytraps | |
GB163832A (en) | Improvements in retinoscopes | |
GB167902A (en) | Improvements in or relating to ophthalmoscopes | |
GB170205A (en) | Improvements in goggles | |
AU1427220B (en) | Improvement in binder-files | |
AU1814920B (en) | Improvements in sampling chondrometers | |
GB172130A (en) | Improvements in range-finders | |
AU1769220B (en) | Improvements in or relating to aero-motors | |
AU1586620B (en) | Improvements in concentrators | |
GB164584A (en) | Improvements in or relating to heliostatic apparatus | |
GB170749A (en) | Improvements in or relating to kinematograph apparatus | |
AU1874720B (en) | Improvements in carburettors | |
AU1917120B (en) | Improvements in carburettors | |
AU1751020B (en) | Improvements in silos | |
AU1883020B (en) | Improvement in skates | |
AU1536520B (en) | Improvements in knotters | |
AU1511020B (en) | Improvements in wheels |