BE371407A - - Google Patents
Info
- Publication number
- BE371407A BE371407A BE371407DA BE371407A BE 371407 A BE371407 A BE 371407A BE 371407D A BE371407D A BE 371407DA BE 371407 A BE371407 A BE 371407A
- 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
- H01J61/70—Lamps with low-pressure unconstricted discharge having a cold pressure < 400 Torr
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01J—ELECTRIC DISCHARGE TUBES OR DISCHARGE LAMPS
- H01J17/00—Gas-filled discharge tubes with solid cathode
- H01J17/02—Details
- H01J17/04—Electrodes; Screens
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01J—ELECTRIC DISCHARGE TUBES OR DISCHARGE LAMPS
- H01J61/00—Gas-discharge or vapour-discharge lamps
- H01J61/02—Details
- H01J61/04—Electrodes; Screens; Shields
- H01J61/06—Main electrodes
- H01J61/067—Main electrodes for low-pressure discharge lamps
- H01J61/0672—Main electrodes for low-pressure discharge lamps characterised by the construction of the electrode
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| US373632A US1794283A (en) | 1929-06-25 | 1929-06-25 | Rectifying apparatus |
| US483949A US1951150A (en) | 1929-06-25 | 1930-09-23 | Gas conduction device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| BE371407A true BE371407A (fr) |
Family
ID=27006257
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| BE371407D BE371407A (fr) | 1929-06-25 |
Country Status (4)
| Country | Link |
|---|---|
| US (1) | US1951150A (fr) |
| BE (1) | BE371407A (fr) |
| FR (3) | FR697838A (fr) |
| GB (2) | GB354452A (fr) |
Families Citing this family (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE764007C (de) * | 1937-10-09 | 1954-05-10 | Siemens Schuckertwerke A G | In seiner Arbeitsleistung gesteuertes elektrisches Gas- oder Dampfentladungsgefaess |
| US2419902A (en) * | 1944-03-10 | 1947-04-29 | Sylvania Electric Prod | Fluorescent electric discharge lamp |
| US2478119A (en) * | 1945-04-20 | 1949-08-02 | Gen Motors Corp | Gaseous discharge tube |
-
0
- BE BE371407D patent/BE371407A/xx unknown
-
1930
- 1930-06-04 GB GB17288/30A patent/GB354452A/en not_active Expired
- 1930-06-24 FR FR697838D patent/FR697838A/fr not_active Expired
- 1930-09-23 US US483949A patent/US1951150A/en not_active Expired - Lifetime
-
1931
- 1931-03-25 FR FR40029D patent/FR40029E/fr not_active Expired
- 1931-09-22 GB GB26481/31A patent/GB389157A/en not_active Expired
- 1931-09-23 FR FR40808D patent/FR40808E/fr not_active Expired
Also Published As
| Publication number | Publication date |
|---|---|
| US1951150A (en) | 1934-03-13 |
| GB389157A (en) | 1933-03-16 |
| GB354452A (en) | 1931-08-13 |
| FR697838A (fr) | 1931-01-22 |
| FR40808E (fr) | 1932-08-23 |
| FR40029E (fr) | 1932-03-25 |