NL17256C - - Google Patents
Info
- Publication number
- NL17256C NL17256C NL17256DA NL17256C NL 17256 C NL17256 C NL 17256C NL 17256D A NL17256D A NL 17256DA NL 17256 C NL17256 C NL 17256C
- 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
- H01J1/20—Cathodes heated indirectly by an electric current; Cathodes heated by electron or ion bombardment
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| GB2149522A GB205613A (en) | 1922-08-08 | 1922-08-08 | Improvements in thermionic devices |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| NL17256C true NL17256C (de) |
Family
ID=10163894
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| NL17256D NL17256C (de) | 1922-08-08 |
Country Status (4)
| Country | Link |
|---|---|
| DE (1) | DE545249C (de) |
| FR (1) | FR569581A (de) |
| GB (1) | GB205613A (de) |
| NL (1) | NL17256C (de) |
-
0
- NL NL17256D patent/NL17256C/xx active
-
1922
- 1922-08-08 GB GB2149522A patent/GB205613A/en not_active Expired
-
1923
- 1923-07-31 DE DER59063D patent/DE545249C/de not_active Expired
- 1923-08-07 FR FR569581D patent/FR569581A/fr not_active Expired
Also Published As
| Publication number | Publication date |
|---|---|
| DE545249C (de) | 1932-03-02 |
| GB205613A (en) | 1923-10-25 |
| FR569581A (fr) | 1924-04-14 |