NL54021C - - Google Patents
Info
- Publication number
- NL54021C NL54021C NL54021DA NL54021C NL 54021 C NL54021 C NL 54021C NL 54021D A NL54021D A NL 54021DA NL 54021 C NL54021 C NL 54021C
- 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)
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE204994X | 1937-03-09 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| NL54021C true NL54021C (xx) |
Family
ID=5784810
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| NL54021D NL54021C (xx) | 1937-03-09 |
Country Status (4)
| Country | Link |
|---|---|
| BE (1) | BE426649A (xx) |
| CH (1) | CH204994A (xx) |
| FR (1) | FR834157A (xx) |
| NL (1) | NL54021C (xx) |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE1009728B (de) * | 1953-08-17 | 1957-06-06 | Albert Flor | Verfahren zur Herstellung von Kathoden fuer elektrische Entladungsroehren |
| BE541432A (xx) * | 1954-09-22 |
-
0
- NL NL54021D patent/NL54021C/xx active
- BE BE426649D patent/BE426649A/xx unknown
-
1938
- 1938-02-21 CH CH204994D patent/CH204994A/de unknown
- 1938-02-23 FR FR834157D patent/FR834157A/fr not_active Expired
Also Published As
| Publication number | Publication date |
|---|---|
| BE426649A (xx) | |
| FR834157A (fr) | 1938-11-15 |
| CH204994A (de) | 1939-05-31 |