FR768113A - Improvements to electric discharge lamps - Google Patents
Improvements to electric discharge lampsInfo
- Publication number
- FR768113A FR768113A FR768113DA FR768113A FR 768113 A FR768113 A FR 768113A FR 768113D A FR768113D A FR 768113DA FR 768113 A FR768113 A FR 768113A
- Authority
- FR
- France
- Prior art keywords
- electric discharge
- discharge lamps
- lamps
- electric
- discharge
- 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
- H01J—ELECTRIC DISCHARGE TUBES OR DISCHARGE LAMPS
- H01J61/00—Gas-discharge or vapour-discharge lamps
- H01J61/82—Lamps with high-pressure unconstricted discharge having a cold pressure > 400 Torr
- H01J61/822—High-pressure mercury lamps
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
GB3433333A GB431382A (en) | 1933-12-06 | 1933-12-06 | Improvements relating to electric discharge lamps |
Publications (1)
Publication Number | Publication Date |
---|---|
FR768113A true FR768113A (en) | 1934-07-31 |
Family
ID=10364335
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
FR768113D Expired FR768113A (en) | 1933-12-06 | 1934-02-03 | Improvements to electric discharge lamps |
Country Status (2)
Country | Link |
---|---|
FR (1) | FR768113A (en) |
GB (1) | GB431382A (en) |
Families Citing this family (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US2650322A (en) * | 1945-09-24 | 1953-08-25 | Gen Electric | High-pressure metal vapor electric discharge lamp |
-
1933
- 1933-12-06 GB GB3433333A patent/GB431382A/en not_active Expired
-
1934
- 1934-02-03 FR FR768113D patent/FR768113A/en not_active Expired
Also Published As
Publication number | Publication date |
---|---|
GB431382A (en) | 1935-07-08 |
Similar Documents
Publication | Publication Date | Title |
---|---|---|
FR773999A (en) | Improvements made to electric discharge tubes | |
FR45379E (en) | Electric discharge tube | |
FR795091A (en) | Improvements to electric discharge tubes | |
FR794684A (en) | Improvements to electric discharge lamps | |
FR44905E (en) | Improvements made to electric discharge tubes | |
FR779256A (en) | Improvements to electric lamps | |
FR784894A (en) | Improvements to electric lamps | |
FR782179A (en) | Electric lamp | |
FR782391A (en) | Electric lamp | |
FR830204A (en) | Improvements to electric discharge lamps | |
FR780700A (en) | Electric discharge tube | |
FR771173A (en) | Electric discharge tube | |
FR768113A (en) | Improvements to electric discharge lamps | |
FR782358A (en) | Electric lamp | |
FR774816A (en) | Electric discharge tube | |
FR771172A (en) | Electric discharge tube | |
FR813247A (en) | Improvements to electric discharge lamps | |
FR811846A (en) | Improvements to electric discharge lamps | |
FR757631A (en) | Improvements made to electric discharge tubes | |
FR777258A (en) | Improvements to electric discharge tubes | |
FR796006A (en) | Improvements to electric lamps | |
FR781477A (en) | Improvements made to electric discharge tubes | |
FR762459A (en) | Improvements to electric discharge tubes | |
FR776889A (en) | Electric discharge lamps | |
FR782565A (en) | Electric discharge tube |