FR1229304A - Improvements to colorimetric devices - Google Patents
Improvements to colorimetric devicesInfo
- Publication number
- FR1229304A FR1229304A FR799241A FR799241A FR1229304A FR 1229304 A FR1229304 A FR 1229304A FR 799241 A FR799241 A FR 799241A FR 799241 A FR799241 A FR 799241A FR 1229304 A FR1229304 A FR 1229304A
- Authority
- FR
- France
- Prior art keywords
- colorimetric devices
- colorimetric
- devices
- 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
- G01N21/25—Colour; Spectral properties, i.e. comparison of effect of material on the light at two or more different wavelengths or wavelength bands
- G01N21/27—Colour; Spectral properties, i.e. comparison of effect of material on the light at two or more different wavelengths or wavelength bands using photo-electric detection ; circuits for computing concentration
Landscapes
- Physics & Mathematics (AREA)
- Engineering & Computer Science (AREA)
- Mathematical Physics (AREA)
- Theoretical Computer Science (AREA)
- Spectroscopy & Molecular Physics (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 |
---|---|---|---|
US1229304XA | 1958-07-10 | 1958-07-10 |
Publications (1)
Publication Number | Publication Date |
---|---|
FR1229304A true FR1229304A (en) | 1960-09-06 |
Family
ID=22405706
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
FR799241A Expired FR1229304A (en) | 1958-07-10 | 1959-07-03 | Improvements to colorimetric devices |
Country Status (1)
Country | Link |
---|---|
FR (1) | FR1229304A (en) |
-
1959
- 1959-07-03 FR FR799241A patent/FR1229304A/en not_active Expired
Similar Documents
Publication | Publication Date | Title |
---|---|---|
BE580368A (en) | Improvements to colorimetric devices | |
FR73591E (en) | Improvements to electromagnetic time devices | |
FR1198473A (en) | Improvements to granulometry devices | |
FR1221268A (en) | Improvements to facsimile devices | |
BE580569A (en) | Improvements to printing devices. | |
FR1219554A (en) | Improvements to facsimile devices | |
FR1240441A (en) | Improvements to facsimile devices | |
FR1191440A (en) | Improvements to massage devices | |
FR1229304A (en) | Improvements to colorimetric devices | |
FR1219477A (en) | Improvements relating to transportable lifting devices | |
FR1230905A (en) | Improvements to television sets | |
FR74449E (en) | Improvements to electromagnetic time devices | |
FR1181018A (en) | Improvements to pre-laminating devices | |
FR1240234A (en) | Improvements to turbo-engines | |
BE597899A (en) | Improvements to telephone devices | |
BE575424A (en) | Improvements to screening devices. | |
FR1214556A (en) | Improvements to perforating devices | |
FR1198494A (en) | Improvements to massage devices | |
FR1208622A (en) | Improvements made to time devices | |
BE588719A (en) | Improvements to distribution devices | |
FR1207735A (en) | Improvements to rakes-tedders | |
FR1375651A (en) | Improvements to stylographs | |
FR1204736A (en) | Improvements to servo-brakes | |
FR1213761A (en) | Improvements to ampoules-syringes | |
FR1226147A (en) | Improvements to position detection devices |