NL16656C - - Google Patents
Info
- Publication number
- NL16656C NL16656C NL16656DA NL16656C NL 16656 C NL16656 C NL 16656C NL 16656D A NL16656D A NL 16656DA NL 16656 C NL16656 C NL 16656C
- Authority
- NL
- Netherlands
Links
Classifications
-
- 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
- H01J1/13—Solid thermionic cathodes
- H01J1/15—Cathodes heated directly by an electric current
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| NL1682642X | 1924-05-21 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| NL16656C true NL16656C (en) |
Family
ID=19872956
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| NL16656D NL16656C (en) | 1924-05-21 |
Country Status (4)
| Country | Link |
|---|---|
| US (1) | US1682642A (en) |
| FR (1) | FR597805A (en) |
| GB (1) | GB234442A (en) |
| NL (1) | NL16656C (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4634921A (en) * | 1984-07-03 | 1987-01-06 | Sony Corporation | Thermionic cathode heater |
-
0
- NL NL16656D patent/NL16656C/xx active
-
1925
- 1925-01-13 GB GB1092/25A patent/GB234442A/en not_active Expired
- 1925-05-09 FR FR597805D patent/FR597805A/en not_active Expired
- 1925-05-11 US US29526A patent/US1682642A/en not_active Expired - Lifetime
Also Published As
| Publication number | Publication date |
|---|---|
| US1682642A (en) | 1928-08-28 |
| FR597805A (en) | 1925-11-30 |
| GB234442A (en) | 1925-12-10 |