FR687543A - Perfectionnements aux colorimètres - Google Patents
Perfectionnements aux colorimètresInfo
- Publication number
- FR687543A FR687543A FR687543DA FR687543A FR 687543 A FR687543 A FR 687543A FR 687543D A FR687543D A FR 687543DA FR 687543 A FR687543 A FR 687543A
- Authority
- FR
- France
- Prior art keywords
- colorimeter
- colorimeter improvements
- 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
- G01N21/29—Colour; Spectral properties, i.e. comparison of effect of material on the light at two or more different wavelengths or wavelength bands using visual detection
Landscapes
- Physics & Mathematics (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 |
---|---|---|---|
FR687543T | 1929-03-25 |
Publications (1)
Publication Number | Publication Date |
---|---|
FR687543A true FR687543A (fr) | 1930-08-09 |
Family
ID=9026200
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
FR687543D Expired FR687543A (fr) | 1929-03-25 | 1929-03-25 | Perfectionnements aux colorimètres |
Country Status (1)
Country | Link |
---|---|
FR (1) | FR687543A (fr) |
-
1929
- 1929-03-25 FR FR687543D patent/FR687543A/fr not_active Expired
Similar Documents
Publication | Publication Date | Title |
---|---|---|
FR699227A (fr) | Perfectionnements aux ventilateurs | |
FR703950A (fr) | Perfectionnements aux centrifugeuses | |
FR694061A (fr) | Perfectionnements aux chaussures | |
FR686668A (fr) | Perfectionnements aux bigoudis | |
FR675625A (fr) | Perfectionnement aux pneumatiques | |
FR38490E (fr) | Perfectionnements aux bigoudis | |
FR704580A (fr) | Perfectionnements aux centrifugeurs | |
FR695182A (fr) | Perfectionnements aux sièges | |
FR679834A (fr) | Perfectionnements aux abat-jour | |
FR687543A (fr) | Perfectionnements aux colorimètres | |
FR704442A (fr) | Perfectionnements aux cordages | |
FR693091A (fr) | Perfectionnements aux freins | |
FR696388A (fr) | Perfectionnements aux tire-roues | |
FR702822A (fr) | Perfectionnements aux télégraphones | |
FR689473A (fr) | Perfectionnements aux micro-téléphones | |
FR695148A (fr) | Perfectionnements apportés aux stylographes | |
FR37752E (fr) | Perfectionnements aux malaxeurs | |
FR687000A (fr) | Perfectionnements aux étuis | |
FR686431A (fr) | Perfectionnements aux pneumatiques | |
FR678637A (fr) | Perfectionnements aux moissonneuses | |
FR696027A (fr) | Perfectionnements aux échafaudages | |
FR668449A (fr) | Perfectionnements aux rotissoires | |
FR699228A (fr) | Perfectionnements aux ventilateurs | |
FR667554A (fr) | Perfectionnements aux ventilateurs | |
FR686320A (fr) | Perfectionnement aux patinettes |