FR44280E - Electric lamp - Google Patents
Electric lampInfo
- Publication number
- FR44280E FR44280E FR44280DA FR44280E FR 44280 E FR44280 E FR 44280E FR 44280D A FR44280D A FR 44280DA FR 44280 E FR44280 E FR 44280E
- Authority
- FR
- France
- Prior art keywords
- electric lamp
- lamp
- electric
- 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
- F21L—LIGHTING DEVICES OR SYSTEMS THEREOF, BEING PORTABLE OR SPECIALLY ADAPTED FOR TRANSPORTATION
- F21L4/00—Electric lighting devices with self-contained electric batteries or cells
-
- 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
- F21V5/006—Refractors for light sources applied to portable lighting devices
-
- 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
- F21V5/04—Refractors for light sources of lens shape
- F21V5/041—Ball lenses
Landscapes
- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
FR44280T | 1933-11-28 |
Publications (1)
Publication Number | Publication Date |
---|---|
FR44280E true FR44280E (en) | 1934-12-13 |
Family
ID=8680126
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
FR44280D Expired FR44280E (en) | 1933-11-28 | 1933-11-28 | Electric lamp |
Country Status (1)
Country | Link |
---|---|
FR (1) | FR44280E (en) |
-
1933
- 1933-11-28 FR FR44280D patent/FR44280E/en not_active Expired
Similar Documents
Publication | Publication Date | Title |
---|---|---|
FR782179A (en) | Electric lamp | |
FR782391A (en) | Electric lamp | |
FR801418A (en) | Electric lamp | |
FR782358A (en) | Electric lamp | |
FR829567A (en) | Electric lamp | |
FR814727A (en) | Portable electric lamp | |
FR771351A (en) | Electric lamp | |
FR44280E (en) | Electric lamp | |
FR750323A (en) | Electric lamp | |
FR793564A (en) | Electric lamp | |
FR775778A (en) | Electric stove | |
FR756257A (en) | Advanced portable electric lamp | |
FR793581A (en) | Electric lamp | |
FR809080A (en) | Electric lamp | |
FR765877A (en) | Electric lamp | |
FR759645A (en) | Electric lamp | |
FR769659A (en) | Electric lamp holder | |
FR795192A (en) | Electric lamp | |
FR782693A (en) | Electric reflector | |
FR827096A (en) | Electric lamp | |
FR827015A (en) | Electric lamp | |
FR803234A (en) | Electric lamp | |
FR772157A (en) | Incandescent electric lamp | |
FR810272A (en) | Portable electric lamp | |
FR768113A (en) | Improvements to electric discharge lamps |