BE419911A - - Google Patents
Info
- Publication number
- BE419911A BE419911A BE419911DA BE419911A BE 419911 A BE419911 A BE 419911A BE 419911D A BE419911D A BE 419911DA BE 419911 A BE419911 A BE 419911A
- Authority
- BE
- Belgium
Links
Classifications
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01J—ELECTRIC DISCHARGE TUBES OR DISCHARGE LAMPS
- H01J9/00—Apparatus or processes specially adapted for the manufacture, installation, removal, maintenance of electric discharge tubes, discharge lamps, or parts thereof; Recovery of material from discharge tubes or lamps
- H01J9/02—Manufacture of electrodes or electrode systems
- H01J9/12—Manufacture of electrodes or electrode systems of photo-emissive cathodes; of secondary-emission electrodes
- H01J9/125—Manufacture of electrodes or electrode systems of photo-emissive cathodes; of secondary-emission electrodes of secondary emission electrodes
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01J—ELECTRIC DISCHARGE TUBES OR DISCHARGE LAMPS
- H01J1/00—Details of electrodes, of magnetic control means, of screens, or of the mounting or spacing thereof, common to two or more basic types of discharge tubes or lamps
- H01J1/02—Main electrodes
- H01J1/32—Secondary-electron-emitting electrodes
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01J—ELECTRIC DISCHARGE TUBES OR DISCHARGE LAMPS
- H01J2201/00—Electrodes common to discharge tubes
- H01J2201/32—Secondary emission electrodes
Landscapes
- Engineering & Computer Science (AREA)
- Manufacturing & Machinery (AREA)
- Discharge Lamp (AREA)
- Cold Cathode And The Manufacture (AREA)
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE473398X | 1936-02-10 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| BE419911A true BE419911A (en:Method) |
Family
ID=6541560
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| BE419911D BE419911A (en:Method) | 1936-02-10 |
Country Status (4)
| Country | Link |
|---|---|
| US (1) | US2146099A (en:Method) |
| BE (1) | BE419911A (en:Method) |
| FR (1) | FR817503A (en:Method) |
| GB (1) | GB473398A (en:Method) |
Families Citing this family (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| BE446289A (en:Method) * | 1941-07-03 | |||
| US2530167A (en) * | 1944-12-14 | 1950-11-14 | Hartford Nat Bank & Trust Co | Discharge tube |
| NL208204A (en:Method) * | 1955-06-21 |
-
0
- BE BE419911D patent/BE419911A/xx unknown
-
1937
- 1937-02-08 GB GB3725/37A patent/GB473398A/en not_active Expired
- 1937-02-09 FR FR817503D patent/FR817503A/fr not_active Expired
- 1937-05-21 US US143946A patent/US2146099A/en not_active Expired - Lifetime
Also Published As
| Publication number | Publication date |
|---|---|
| GB473398A (en) | 1937-10-12 |
| US2146099A (en) | 1939-02-07 |
| FR817503A (fr) | 1937-09-04 |