NL19436C - - Google Patents
Info
- Publication number
- NL19436C NL19436C NL19436DA NL19436C NL 19436 C NL19436 C NL 19436C NL 19436D A NL19436D A NL 19436DA NL 19436 C NL19436 C NL 19436C
- 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 |
|---|---|---|---|
| NL1777253X | 1926-04-06 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| NL19436C true NL19436C (https=) |
Family
ID=19873084
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| NL19436D NL19436C (https=) | 1926-04-06 |
Country Status (4)
| Country | Link |
|---|---|
| US (1) | US1777253A (https=) |
| BE (1) | BE340880A (https=) |
| DE (1) | DE665414C (https=) |
| NL (1) | NL19436C (https=) |
Families Citing this family (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US2505909A (en) * | 1948-02-26 | 1950-05-02 | Bishop H Russell | Cathode-ray tube with oxide coated cathode |
| BE488975A (https=) * | 1948-05-14 | |||
| US2848635A (en) * | 1954-11-16 | 1958-08-19 | Vacuum Electronic Engineering | Ionization gauges |
| US3312856A (en) * | 1963-03-26 | 1967-04-04 | Gen Electric | Rhenium supported metallic boride cathode emitters |
-
0
- BE BE340880D patent/BE340880A/xx unknown
- NL NL19436D patent/NL19436C/xx active
-
1926
- 1926-10-12 DE DEN26449D patent/DE665414C/de not_active Expired
-
1927
- 1927-02-25 US US171051A patent/US1777253A/en not_active Expired - Lifetime
Also Published As
| Publication number | Publication date |
|---|---|
| BE340880A (https=) | |
| DE665414C (de) | 1938-09-24 |
| US1777253A (en) | 1930-09-30 |