GB191415399A - Improvements in Vacuum Tube Lighting Apparatus. - Google Patents
Improvements in Vacuum Tube Lighting Apparatus.Info
- Publication number
- GB191415399A GB191415399A GB191415399DA GB191415399A GB 191415399 A GB191415399 A GB 191415399A GB 191415399D A GB191415399D A GB 191415399DA GB 191415399 A GB191415399 A GB 191415399A
- Authority
- GB
- United Kingdom
- Prior art keywords
- lighting apparatus
- vacuum tube
- tube lighting
- valves
- lighting
- 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
- 239000004576 sand Substances 0.000 abstract 1
Classifications
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01J—ELECTRIC DISCHARGE TUBES OR DISCHARGE LAMPS
- H01J61/00—Gas-discharge or vapour-discharge lamps
- H01J61/02—Details
- H01J61/24—Means for obtaining or maintaining the desired pressure within the vessel
- H01J61/28—Means for producing, introducing, or replenishing gas or vapour during operation of the lamp
Landscapes
- Vessels And Coating Films For Discharge Lamps (AREA)
- Compressors, Vaccum Pumps And Other Relevant Systems (AREA)
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE280504T | 1913-06-28 |
Publications (1)
Publication Number | Publication Date |
---|---|
GB191415399A true GB191415399A (en) | 1914-11-05 |
Family
ID=32523719
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
GB191415399D Expired GB191415399A (en) | 1913-06-28 | 1914-06-26 | Improvements in Vacuum Tube Lighting Apparatus. |
Country Status (3)
Country | Link |
---|---|
DE (1) | DE280504C (enrdf_load_stackoverflow) |
FR (1) | FR474157A (enrdf_load_stackoverflow) |
GB (1) | GB191415399A (enrdf_load_stackoverflow) |
-
1913
- 1913-06-28 DE DE1913280504D patent/DE280504C/de not_active Expired - Lifetime
-
1914
- 1914-06-26 FR FR474157D patent/FR474157A/fr not_active Expired
- 1914-06-26 GB GB191415399D patent/GB191415399A/en not_active Expired
Also Published As
Publication number | Publication date |
---|---|
DE280504C (enrdf_load_stackoverflow) | |
FR474157A (fr) | 1915-02-10 |
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