NL25429C - - Google Patents
Info
- Publication number
- NL25429C NL25429C NL25429DA NL25429C NL 25429 C NL25429 C NL 25429C NL 25429D A NL25429D A NL 25429DA NL 25429 C NL25429 C NL 25429C
- 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 (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DEL69010D DE584068C (de) | 1927-06-25 | 1927-06-25 | Indirekt geheizte Kathode |
| DE292913X | 1927-06-25 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| NL25429C true NL25429C (en:Method) |
Family
ID=25780058
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| NL25429D NL25429C (en:Method) | 1927-06-25 |
Country Status (6)
| Country | Link |
|---|---|
| US (1) | US1939997A (en:Method) |
| AT (1) | AT124871B (en:Method) |
| DE (1) | DE584068C (en:Method) |
| FR (1) | FR656047A (en:Method) |
| GB (2) | GB292913A (en:Method) |
| NL (1) | NL25429C (en:Method) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| NL110237C (en:Method) * | 1951-06-10 |
-
0
- NL NL25429D patent/NL25429C/xx active
-
1927
- 1927-06-25 DE DEL69010D patent/DE584068C/de not_active Expired
-
1928
- 1928-06-11 AT AT124871D patent/AT124871B/de active
- 1928-06-18 FR FR656047D patent/FR656047A/fr not_active Expired
- 1928-06-18 GB GB17540/28A patent/GB292913A/en not_active Expired
- 1928-06-18 GB GB9966/29A patent/GB308823A/en not_active Expired
- 1928-06-23 US US287812A patent/US1939997A/en not_active Expired - Lifetime
Also Published As
| Publication number | Publication date |
|---|---|
| GB308823A (en) | 1929-09-12 |
| GB292913A (en) | 1929-06-20 |
| DE584068C (de) | 1933-09-14 |
| FR656047A (fr) | 1929-04-26 |
| AT124871B (de) | 1931-10-10 |
| US1939997A (en) | 1933-12-19 |