BE419602A - - Google Patents
Info
- Publication number
- BE419602A BE419602A BE419602DA BE419602A BE 419602 A BE419602 A BE 419602A BE 419602D A BE419602D A BE 419602DA BE 419602 A BE419602 A BE 419602A
- Authority
- BE
- Belgium
Links
Classifications
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01J—ELECTRIC DISCHARGE TUBES OR DISCHARGE LAMPS
- H01J61/00—Gas-discharge or vapour-discharge lamps
- H01J61/02—Details
- H01J61/12—Selection of substances for gas fillings; Specified operating pressure or temperature
- H01J61/18—Selection of substances for gas fillings; Specified operating pressure or temperature having a metallic vapour as the principal constituent
- H01J61/20—Selection of substances for gas fillings; Specified operating pressure or temperature having a metallic vapour as the principal constituent mercury vapour
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| NL474192X | 1936-01-24 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| BE419602A true BE419602A (xx) |
Family
ID=19786502
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| BE419602D BE419602A (xx) | 1936-01-24 |
Country Status (5)
| Country | Link |
|---|---|
| US (1) | US2177694A (xx) |
| BE (1) | BE419602A (xx) |
| DE (1) | DE750670C (xx) |
| FR (1) | FR816720A (xx) |
| GB (1) | GB474192A (xx) |
Family Cites Families (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| NL13401C (xx) * | 1921-06-14 | |||
| CH138143A (de) * | 1927-12-19 | 1930-02-15 | Inc Claude Neon Lights | Glimmlichtröhre mit positiver Lichtsäule. |
| DE529393C (de) * | 1929-02-21 | 1931-07-11 | Patra Patent Treuhand | Verfahren und Einrichtung zum Betriebe elektrischer Leuchtroehren mit Gas- oder Dampffuellung |
| DE657108C (de) * | 1934-11-05 | 1938-02-25 | Philips Patentverwaltung | Kuenstlich gekuehlte, fuer Lichtausstrahlung dienende Hochdruckquecksilberdampfentladungsroehre |
-
0
- BE BE419602D patent/BE419602A/xx unknown
-
1936
- 1936-02-14 DE DEN39151D patent/DE750670C/de not_active Expired
- 1936-12-29 US US118129A patent/US2177694A/en not_active Expired - Lifetime
-
1937
- 1937-01-22 GB GB1970/37A patent/GB474192A/en not_active Expired
- 1937-01-22 FR FR816720D patent/FR816720A/fr not_active Expired
Also Published As
| Publication number | Publication date |
|---|---|
| FR816720A (fr) | 1937-08-16 |
| DE750670C (de) | 1945-01-25 |
| GB474192A (en) | 1937-10-27 |
| US2177694A (en) | 1939-10-31 |