FR2213490A1 - - Google Patents
Info
- Publication number
- FR2213490A1 FR2213490A1 FR7241381A FR7241381A FR2213490A1 FR 2213490 A1 FR2213490 A1 FR 2213490A1 FR 7241381 A FR7241381 A FR 7241381A FR 7241381 A FR7241381 A FR 7241381A FR 2213490 A1 FR2213490 A1 FR 2213490A1
- Authority
- FR
- France
- 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.)
- Granted
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
- G01N21/55—Specular reflectivity
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)
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
FR7241381A FR2213490B1 (en) | 1972-11-16 | 1972-11-16 |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
FR7241381A FR2213490B1 (en) | 1972-11-16 | 1972-11-16 |
Publications (2)
Publication Number | Publication Date |
---|---|
FR2213490A1 true FR2213490A1 (en) | 1974-08-02 |
FR2213490B1 FR2213490B1 (en) | 1975-03-28 |
Family
ID=9107484
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
FR7241381A Expired FR2213490B1 (en) | 1972-11-16 | 1972-11-16 |
Country Status (1)
Country | Link |
---|---|
FR (1) | FR2213490B1 (en) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP0050528A2 (en) * | 1980-10-21 | 1982-04-28 | Xerox Corporation | Toner concentration monitor |
Citations (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CH359783A (en) * | 1958-06-20 | 1962-01-31 | Rueger Ernst A | Photoelectric scanning device for reflection light controls |
-
1972
- 1972-11-16 FR FR7241381A patent/FR2213490B1/fr not_active Expired
Patent Citations (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CH359783A (en) * | 1958-06-20 | 1962-01-31 | Rueger Ernst A | Photoelectric scanning device for reflection light controls |
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP0050528A2 (en) * | 1980-10-21 | 1982-04-28 | Xerox Corporation | Toner concentration monitor |
EP0050528A3 (en) * | 1980-10-21 | 1982-06-02 | Xerox Corporation | Toner concentration monitor |
Also Published As
Publication number | Publication date |
---|---|
FR2213490B1 (en) | 1975-03-28 |
Similar Documents
Legal Events
Date | Code | Title | Description |
---|---|---|---|
ST | Notification of lapse |