NL42504C - - Google Patents
Info
- Publication number
- NL42504C NL42504C NL42504DA NL42504C NL 42504 C NL42504 C NL 42504C NL 42504D A NL42504D A NL 42504DA NL 42504 C NL42504 C NL 42504C
- Authority
- NL
- Netherlands
Links
Classifications
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01J—ELECTRIC DISCHARGE TUBES OR DISCHARGE LAMPS
- H01J5/00—Details relating to vessels or to leading-in conductors common to two or more basic types of discharge tubes or lamps
- H01J5/02—Vessels; Containers; Shields associated therewith; Vacuum locks
- H01J5/08—Vessels; Containers; Shields associated therewith; Vacuum locks provided with coatings on the walls thereof; Selection of materials for the coatings
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| US687565A US2035003A (en) | 1933-08-31 | 1933-08-31 | Electron discharge device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| NL42504C true NL42504C (en) |
Family
ID=24760913
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| NL42504D NL42504C (en) | 1933-08-31 |
Country Status (5)
| Country | Link |
|---|---|
| US (1) | US2035003A (en) |
| BE (1) | BE404985A (en) |
| FR (1) | FR776056A (en) |
| GB (1) | GB426760A (en) |
| NL (1) | NL42504C (en) |
Families Citing this family (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US2584994A (en) * | 1946-03-15 | 1952-02-12 | Int Standard Electric Corp | Nonemissive electrode and method of manufacturing |
| US2494670A (en) * | 1946-04-26 | 1950-01-17 | Rca Corp | Electronic discharge device |
| US2527514A (en) * | 1947-08-19 | 1950-10-31 | Int Standard Electric Corp | Nonemissive electrode for use in electron discharge devices |
| US2605442A (en) * | 1948-03-19 | 1952-07-29 | Sylvania Electric Prod | Electron discharge device |
| FR2520553A1 (en) * | 1982-01-22 | 1983-07-29 | Cameca | ELECTRONIC OPTICAL APPARATUS COMPRISING PYROLYTIC GRAPHITE ELEMENTS |
-
0
- NL NL42504D patent/NL42504C/xx active
- BE BE404985D patent/BE404985A/xx unknown
-
1933
- 1933-08-31 US US687565A patent/US2035003A/en not_active Expired - Lifetime
-
1934
- 1934-07-17 FR FR776056D patent/FR776056A/en not_active Expired
- 1934-08-27 GB GB24673/34A patent/GB426760A/en not_active Expired
Also Published As
| Publication number | Publication date |
|---|---|
| GB426760A (en) | 1935-04-09 |
| BE404985A (en) | |
| US2035003A (en) | 1936-03-24 |
| FR776056A (en) | 1935-01-16 |