NL18252C - - Google Patents
Info
- Publication number
- NL18252C NL18252C NL18252DA NL18252C NL 18252 C NL18252 C NL 18252C NL 18252D A NL18252D A NL 18252DA NL 18252 C NL18252 C NL 18252C
- 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)
- Manufacture Of Electron Tubes, Discharge Lamp Vessels, Lead-In Wires, And The Like (AREA)
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| NL245145X | 1924-12-24 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| NL18252C true NL18252C (mo) |
Family
ID=19780799
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| NL18252D NL18252C (mo) | 1924-12-24 |
Country Status (3)
| Country | Link |
|---|---|
| FR (1) | FR605904A (mo) |
| GB (1) | GB245145A (mo) |
| NL (1) | NL18252C (mo) |
-
0
- NL NL18252D patent/NL18252C/xx active
-
1925
- 1925-11-09 FR FR605904D patent/FR605904A/fr not_active Expired
- 1925-12-23 GB GB32458/25A patent/GB245145A/en not_active Expired
Also Published As
| Publication number | Publication date |
|---|---|
| FR605904A (fr) | 1926-06-04 |
| GB245145A (en) | 1926-07-08 |