FR943072A - Improvements to electric lamp frames - Google Patents
Improvements to electric lamp framesInfo
- Publication number
- FR943072A FR943072A FR943072DA FR943072A FR 943072 A FR943072 A FR 943072A FR 943072D A FR943072D A FR 943072DA FR 943072 A FR943072 A FR 943072A
- Authority
- FR
- France
- Prior art keywords
- electric lamp
- lamp frames
- frames
- electric
- lamp
- 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
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01K—ELECTRIC INCANDESCENT LAMPS
- H01K1/00—Details
- H01K1/42—Means forming part of the lamp for the purpose of providing electrical connection, or support for, the lamp
- H01K1/46—Means forming part of the lamp for the purpose of providing electrical connection, or support for, the lamp supported by a separate part, e.g. base, cap
-
- 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
- F21V19/00—Fastening of light sources or lamp holders
-
- G—PHYSICS
- G03—PHOTOGRAPHY; CINEMATOGRAPHY; ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ELECTROGRAPHY; HOLOGRAPHY
- G03B—APPARATUS OR ARRANGEMENTS FOR TAKING PHOTOGRAPHS OR FOR PROJECTING OR VIEWING THEM; APPARATUS OR ARRANGEMENTS EMPLOYING ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ACCESSORIES THEREFOR
- G03B21/00—Projectors or projection-type viewers; Accessories therefor
- G03B21/14—Details
- G03B21/20—Lamp housings
- G03B21/2046—Positional adjustment of light sources
Landscapes
- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US943072XA | 1941-05-17 | 1941-05-17 |
Publications (1)
Publication Number | Publication Date |
---|---|
FR943072A true FR943072A (en) | 1949-02-25 |
Family
ID=22244401
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
FR943072D Expired FR943072A (en) | 1941-05-17 | 1947-03-12 | Improvements to electric lamp frames |
Country Status (3)
Country | Link |
---|---|
BE (1) | BE478103A (en) |
FR (1) | FR943072A (en) |
NL (1) | NL65079C (en) |
-
0
- NL NL65079D patent/NL65079C/xx active
- BE BE478103D patent/BE478103A/xx unknown
-
1947
- 1947-03-12 FR FR943072D patent/FR943072A/en not_active Expired
Also Published As
Publication number | Publication date |
---|---|
BE478103A (en) | |
NL65079C (en) |
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