FR65831E - - Google Patents
Info
- Publication number
- FR65831E FR65831E FR65831DA FR65831E FR 65831 E FR65831 E FR 65831E FR 65831D A FR65831D A FR 65831DA FR 65831 E FR65831 E FR 65831E
- 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.)
- Expired
Links
Classifications
-
- G—PHYSICS
- G02—OPTICS
- G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
- G02B5/00—Optical elements other than lenses
- G02B5/20—Filters
- G02B5/208—Filters for use with infrared or ultraviolet radiation, e.g. for separating visible light from infrared and/or ultraviolet radiation
Landscapes
- Physics & Mathematics (AREA)
- Health & Medical Sciences (AREA)
- Toxicology (AREA)
- General Physics & Mathematics (AREA)
- Optics & Photonics (AREA)
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| FR65831T |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| FR65831E true FR65831E (ref) | 1956-03-21 |
Family
ID=8698475
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| FR65831D Expired FR65831E (ref) |
Country Status (1)
| Country | Link |
|---|---|
| FR (1) | FR65831E (ref) |
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0
- FR FR65831D patent/FR65831E/fr not_active Expired