FR678895A - Appropriate improvements to anti-glare devices for road traffic - Google Patents
Appropriate improvements to anti-glare devices for road trafficInfo
- Publication number
- FR678895A FR678895A FR678895DA FR678895A FR 678895 A FR678895 A FR 678895A FR 678895D A FR678895D A FR 678895DA FR 678895 A FR678895 A FR 678895A
- Authority
- FR
- France
- Prior art keywords
- road traffic
- appropriate improvements
- glare devices
- glare
- 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
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F21—LIGHTING
- F21S—NON-PORTABLE LIGHTING DEVICES; SYSTEMS THEREOF; VEHICLE LIGHTING DEVICES SPECIALLY ADAPTED FOR VEHICLE EXTERIORS
- F21S41/00—Illuminating devices specially adapted for vehicle exteriors, e.g. headlamps
- F21S41/10—Illuminating devices specially adapted for vehicle exteriors, e.g. headlamps characterised by the light source
- F21S41/12—Illuminating devices specially adapted for vehicle exteriors, e.g. headlamps characterised by the light source characterised by the type of emitted light
- F21S41/135—Polarised
Landscapes
- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
GB678895X | 1929-04-10 |
Publications (1)
Publication Number | Publication Date |
---|---|
FR678895A true FR678895A (en) | 1930-04-05 |
Family
ID=10492308
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
FR678895D Expired FR678895A (en) | 1929-04-10 | 1929-07-23 | Appropriate improvements to anti-glare devices for road traffic |
Country Status (1)
Country | Link |
---|---|
FR (1) | FR678895A (en) |
-
1929
- 1929-07-23 FR FR678895D patent/FR678895A/en not_active Expired
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