FR728498A - Improvements to light projectors - Google Patents
Improvements to light projectorsInfo
- Publication number
- FR728498A FR728498A FR728498DA FR728498A FR 728498 A FR728498 A FR 728498A FR 728498D A FR728498D A FR 728498DA FR 728498 A FR728498 A FR 728498A
- Authority
- FR
- France
- Prior art keywords
- light projectors
- projectors
- 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
- F21V21/00—Supporting, suspending, or attaching arrangements for lighting devices; Hand grips
- F21V21/14—Adjustable mountings
- F21V21/26—Pivoted arms
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F21—LIGHTING
- F21S—NON-PORTABLE LIGHTING DEVICES; SYSTEMS THEREOF; VEHICLE LIGHTING DEVICES SPECIALLY ADAPTED FOR VEHICLE EXTERIORS
- F21S6/00—Lighting devices intended to be free-standing
Landscapes
- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
FR728498T | 1931-02-26 |
Publications (1)
Publication Number | Publication Date |
---|---|
FR728498A true FR728498A (en) | 1932-07-06 |
Family
ID=9111878
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
FR728498D Expired FR728498A (en) | 1931-02-26 | 1931-02-26 | Improvements to light projectors |
Country Status (1)
Country | Link |
---|---|
FR (1) | FR728498A (en) |
-
1931
- 1931-02-26 FR FR728498D patent/FR728498A/en not_active Expired
Similar Documents
Publication | Publication Date | Title |
---|---|---|
FR733618A (en) | Improvements to reflective surfaces | |
FR735194A (en) | Improvements to cinematographic projection devices | |
FR730429A (en) | Improvements to light sources | |
FR726819A (en) | Improvements to light boats | |
FR728498A (en) | Improvements to light projectors | |
FR728748A (en) | Improvements to mirrors | |
FR765884A (en) | Improvements to light reflectors | |
FR737974A (en) | Improvements to illuminated projectors | |
FR733493A (en) | Improvements to cinematographic projectors | |
FR720695A (en) | Improvements to lamp frames | |
FR731512A (en) | Improvements to automatic starting mechanisms | |
FR739636A (en) | Advanced lighting projectors | |
FR41503E (en) | Improvements to luminescence lamps | |
FR725213A (en) | Improvements to stereoscopes | |
FR727597A (en) | Improvements to reflectors | |
FR711516A (en) | Improvements to modulators | |
FR719285A (en) | Improvements to bannetons | |
FR727937A (en) | Improvements to decavaillonneurs | |
FR732335A (en) | Improvements to servo-brakes | |
FR732899A (en) | Improvements to micro-telephones | |
FR718083A (en) | Improvements to valve-pistons | |
FR715992A (en) | Improvements to motocameras | |
FR41670E (en) | Improvements to decavaillonneurs | |
FR833192A (en) | Improvements to light projectors | |
FR732633A (en) | Improvements to starting mechanisms |