NL202520A - - Google Patents
Info
- Publication number
- NL202520A NL202520A NL202520DA NL202520A NL 202520 A NL202520 A NL 202520A NL 202520D A NL202520D A NL 202520DA NL 202520 A NL202520 A NL 202520A
- 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
-
- 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
- H01J9/08—Manufacture of heaters for indirectly-heated cathodes
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01K—ELECTRIC INCANDESCENT LAMPS
- H01K3/00—Apparatus or processes adapted to the manufacture, installing, removal, or maintenance of incandescent lamps or parts thereof
- H01K3/02—Manufacture of incandescent bodies
Landscapes
- Engineering & Computer Science (AREA)
- Manufacturing & Machinery (AREA)
- Lasers (AREA)
- Powder Metallurgy (AREA)
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| GB35096/54A GB798945A (en) | 1954-12-03 | 1954-12-03 | Improvements in or relating to electric discharge devices |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| NL202520A true NL202520A (xx) |
Family
ID=10373771
Family Applications (2)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| NL96915D NL96915C (xx) | 1954-12-03 | ||
| NL202520D NL202520A (xx) | 1954-12-03 |
Family Applications Before (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| NL96915D NL96915C (xx) | 1954-12-03 |
Country Status (4)
| Country | Link |
|---|---|
| US (1) | US2881104A (xx) |
| DE (1) | DE1070740B (xx) |
| GB (1) | GB798945A (xx) |
| NL (2) | NL202520A (xx) |
Families Citing this family (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| AT222751B (de) * | 1960-06-17 | 1962-08-10 | Egyesuelt Izzolampa | Verfahren zur Herstellung von Glühlampenwendeln |
| US3530010A (en) * | 1968-07-22 | 1970-09-22 | Research Corp | Method of making blazed optical diffraction gratings |
| HU207907B (en) * | 1987-10-22 | 1993-06-28 | Tungsram Reszvenytarsasag | Apparatus for continuous heat treating tungsten spiral filaments on molibdenum core |
Family Cites Families (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US2165310A (en) * | 1939-07-11 | Filament | ||
| US1738960A (en) * | 1926-03-30 | 1929-12-10 | Mutscheller Arthur | Vacuum discharge device and method of using the same |
| US2069081A (en) * | 1932-05-31 | 1937-01-26 | Gen Electric | Electric incandescent lamp |
| US2047555A (en) * | 1933-05-31 | 1936-07-14 | Parsons & Co Ltd C A | Manufacture of hollow turbine blades |
| US2482826A (en) * | 1945-08-04 | 1949-09-27 | Tung Sol Lamp Works Inc | Filament structure for thermionic tubes |
-
0
- NL NL96915D patent/NL96915C/xx active
- DE DENDAT1070740D patent/DE1070740B/de active Pending
- NL NL202520D patent/NL202520A/xx unknown
-
1954
- 1954-12-03 GB GB35096/54A patent/GB798945A/en not_active Expired
-
1955
- 1955-12-05 US US576510A patent/US2881104A/en not_active Expired - Lifetime
Also Published As
| Publication number | Publication date |
|---|---|
| US2881104A (en) | 1959-04-07 |
| GB798945A (en) | 1958-07-30 |
| DE1070740B (xx) | |
| NL96915C (xx) |