FR759645A - Lampe électrique - Google Patents
Lampe électriqueInfo
- Publication number
- FR759645A FR759645A FR759645DA FR759645A FR 759645 A FR759645 A FR 759645A FR 759645D A FR759645D A FR 759645DA FR 759645 A FR759645 A FR 759645A
- 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 |
---|---|---|---|
US759645XA | 1932-07-29 | 1932-07-29 |
Publications (1)
Publication Number | Publication Date |
---|---|
FR759645A true FR759645A (fr) | 1934-02-06 |
Family
ID=22129045
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
FR759645D Expired FR759645A (fr) | 1932-07-29 | 1933-07-24 | Lampe électrique |
Country Status (1)
Country | Link |
---|---|
FR (1) | FR759645A (fr) |
-
1933
- 1933-07-24 FR FR759645D patent/FR759645A/fr not_active Expired
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