NL15308C - - Google Patents
Info
- Publication number
- NL15308C NL15308C NL15308DA NL15308C NL 15308 C NL15308 C NL 15308C NL 15308D A NL15308D A NL 15308DA NL 15308 C NL15308 C NL 15308C
- Authority
- NL
- Netherlands
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
- H01J9/04—Manufacture of electrodes or electrode systems of thermionic cathodes
- H01J9/042—Manufacture, activation of the emissive part
Landscapes
- Engineering & Computer Science (AREA)
- Manufacturing & Machinery (AREA)
- Solid Thermionic Cathode (AREA)
- Electrodes For Compound Or Non-Metal Manufacture (AREA)
- Electrolytic Production Of Non-Metals, Compounds, Apparatuses Therefor (AREA)
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| GB15309/23A GB221851A (en) | 1923-06-12 | 1923-06-12 | Improvements in or relating to vacuum electric tubes |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| NL15308C true NL15308C (forum.php) | 1900-01-01 |
Family
ID=10056785
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| NL15308D NL15308C (forum.php) | 1923-06-12 |
Country Status (5)
| Country | Link |
|---|---|
| US (1) | US1850809A (forum.php) |
| DE (1) | DE483948C (forum.php) |
| FR (1) | FR582662A (forum.php) |
| GB (1) | GB221851A (forum.php) |
| NL (1) | NL15308C (forum.php) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE741396C (de) * | 1937-07-17 | 1943-11-10 | Sueddeutsche Telefon App Kabel | Verfahren zur Herstellung von isolierten gewendelten Heizdraehten fuer indirekt geheizte Kathoden |
Families Citing this family (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE968912C (de) * | 1931-09-15 | 1958-04-10 | Siegmund Loewe Dr | Verfahren zur Herstellung von Hochemissionskathoden fuer Entladungsgefaesse |
| NL48805C (forum.php) * | 1936-09-01 | |||
| US2693431A (en) * | 1948-01-27 | 1954-11-02 | Eitcl Mccullough Inc | Method of making electron emitters |
| NL88370C (forum.php) * | 1952-03-26 | |||
| US3265924A (en) * | 1962-06-29 | 1966-08-09 | York Res Corp | Thermionic tube having novel heater and cathode |
-
0
- NL NL15308D patent/NL15308C/xx active
-
1923
- 1923-06-12 GB GB15309/23A patent/GB221851A/en not_active Expired
-
1924
- 1924-05-24 US US715653A patent/US1850809A/en not_active Expired - Lifetime
- 1924-06-01 DE DER61232D patent/DE483948C/de not_active Expired
- 1924-06-11 FR FR582662D patent/FR582662A/fr not_active Expired
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE741396C (de) * | 1937-07-17 | 1943-11-10 | Sueddeutsche Telefon App Kabel | Verfahren zur Herstellung von isolierten gewendelten Heizdraehten fuer indirekt geheizte Kathoden |
Also Published As
| Publication number | Publication date |
|---|---|
| GB221851A (en) | 1924-09-12 |
| US1850809A (en) | 1932-03-22 |
| DE483948C (de) | 1929-10-09 |
| FR582662A (fr) | 1924-12-24 |