FR862106A - Light shield - Google Patents
Light shieldInfo
- Publication number
- FR862106A FR862106A FR862106DA FR862106A FR 862106 A FR862106 A FR 862106A FR 862106D A FR862106D A FR 862106DA FR 862106 A FR862106 A FR 862106A
- Authority
- FR
- France
- Prior art keywords
- light shield
- shield
- light
- 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
- F21V—FUNCTIONAL FEATURES OR DETAILS OF LIGHTING DEVICES OR SYSTEMS THEREOF; STRUCTURAL COMBINATIONS OF LIGHTING DEVICES WITH OTHER ARTICLES, NOT OTHERWISE PROVIDED FOR
- F21V11/00—Screens not covered by groups F21V1/00, F21V3/00, F21V7/00 or F21V9/00
- F21V11/08—Screens not covered by groups F21V1/00, F21V3/00, F21V7/00 or F21V9/00 using diaphragms containing one or more apertures
Landscapes
- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
FR862106T | 1939-12-05 |
Publications (1)
Publication Number | Publication Date |
---|---|
FR862106A true FR862106A (en) | 1941-02-27 |
Family
ID=9342666
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
FR862106D Expired FR862106A (en) | 1939-12-05 | 1939-12-05 | Light shield |
Country Status (1)
Country | Link |
---|---|
FR (1) | FR862106A (en) |
-
1939
- 1939-12-05 FR FR862106D patent/FR862106A/en not_active Expired
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