FR774127A - - Google Patents
Info
- Publication number
- FR774127A FR774127A FR774127DA FR774127A FR 774127 A FR774127 A FR 774127A FR 774127D A FR774127D A FR 774127DA FR 774127 A FR774127 A FR 774127A
- 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
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F21—LIGHTING
- F21V—FUNCTIONAL FEATURES OR DETAILS OF LIGHTING DEVICES OR SYSTEMS THEREOF; STRUCTURAL COMBINATIONS OF LIGHTING DEVICES WITH OTHER ARTICLES, NOT OTHERWISE PROVIDED FOR
- F21V7/00—Reflectors for light sources
- F21V7/04—Optical design
Landscapes
- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
Publications (1)
| Publication Number | Publication Date |
|---|---|
| FR774127A true FR774127A (ru) | 1934-11-29 |
Family
ID=1552129
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| FR774127D Expired FR774127A (ru) |
Country Status (1)
| Country | Link |
|---|---|
| FR (1) | FR774127A (ru) |
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0
- FR FR774127D patent/FR774127A/fr not_active Expired