FR516746A - Improvements to lighting glassworks - Google Patents
Improvements to lighting glassworksInfo
- Publication number
- FR516746A FR516746A FR516746A FR516746DA FR516746A FR 516746 A FR516746 A FR 516746A FR 516746 A FR516746 A FR 516746A FR 516746D A FR516746D A FR 516746DA FR 516746 A FR516746 A FR 516746A
- Authority
- FR
- France
- Prior art keywords
- glassworks
- lighting
- lighting glassworks
- 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
- F21V5/00—Refractors for light sources
Landscapes
- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US516746XA | 1915-12-31 | 1915-12-31 |
Publications (1)
Publication Number | Publication Date |
---|---|
FR516746A true FR516746A (en) | 1921-04-25 |
Family
ID=21972714
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
FR516746A Expired FR516746A (en) | 1915-12-31 | 1920-06-10 | Improvements to lighting glassworks |
Country Status (1)
Country | Link |
---|---|
FR (1) | FR516746A (en) |
-
1920
- 1920-06-10 FR FR516746A patent/FR516746A/en not_active Expired
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