NL20977C - - Google Patents
Info
- Publication number
- NL20977C NL20977C NL20977DA NL20977C NL 20977 C NL20977 C NL 20977C NL 20977D A NL20977D A NL 20977DA NL 20977 C NL20977 C NL 20977C
- 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
- H01J1/14—Solid thermionic cathodes characterised by the material
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE274509X | 1926-07-19 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| NL20977C true NL20977C (OSRAM) |
Family
ID=6020873
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| NL20977D NL20977C (OSRAM) | 1926-07-19 |
Country Status (2)
| Country | Link |
|---|---|
| GB (1) | GB274509A (OSRAM) |
| NL (1) | NL20977C (OSRAM) |
-
0
- NL NL20977D patent/NL20977C/xx active
-
1927
- 1927-07-18 GB GB19054/27A patent/GB274509A/en not_active Expired
Also Published As
| Publication number | Publication date |
|---|---|
| GB274509A (en) | 1928-10-18 |