NL17509C - - Google Patents
Info
- Publication number
- NL17509C NL17509C NL17509DA NL17509C NL 17509 C NL17509 C NL 17509C NL 17509D A NL17509D A NL 17509DA NL 17509 C NL17509 C NL 17509C
- Authority
- NL
- Netherlands
Links
Classifications
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01J—ELECTRIC DISCHARGE TUBES OR DISCHARGE LAMPS
- H01J21/00—Vacuum tubes
- H01J21/02—Tubes with a single discharge path
-
- 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 |
|---|---|---|---|
| NL1874292X | 1925-08-15 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| NL17509C true NL17509C (cs) |
Family
ID=19873223
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| NL17509D NL17509C (cs) | 1925-08-15 |
Country Status (2)
| Country | Link |
|---|---|
| US (1) | US1874292A (cs) |
| NL (1) | NL17509C (cs) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3152276A (en) * | 1960-09-08 | 1964-10-06 | Philips Corp | Electron tube having coaxial terminals for an interiorly emissive cathode |
-
0
- NL NL17509D patent/NL17509C/xx active
-
1926
- 1926-05-28 US US112280A patent/US1874292A/en not_active Expired - Lifetime
Also Published As
| Publication number | Publication date |
|---|---|
| US1874292A (en) | 1932-08-30 |