NL54243C - - Google Patents
Info
- Publication number
- NL54243C NL54243C NL54243DA NL54243C NL 54243 C NL54243 C NL 54243C NL 54243D A NL54243D A NL 54243DA NL 54243 C NL54243 C NL 54243C
- Authority
- NL
- Netherlands
Links
Classifications
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01J—ELECTRIC DISCHARGE TUBES OR DISCHARGE LAMPS
- H01J29/00—Details of cathode-ray tubes or of electron-beam tubes of the types covered by group H01J31/00
- H01J29/84—Traps for removing or diverting unwanted particles, e.g. negative ions, fringing electrons; Arrangements for velocity or mass selection
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE207146X | 1938-02-07 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| NL54243C true NL54243C (zh) |
Family
ID=5793550
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| NL54243D NL54243C (zh) | 1938-02-07 |
Country Status (5)
| Country | Link |
|---|---|
| US (1) | US2356418A (zh) |
| BE (1) | BE432577A (zh) |
| CH (1) | CH207146A (zh) |
| FR (1) | FR849946A (zh) |
| NL (1) | NL54243C (zh) |
-
0
- BE BE432577D patent/BE432577A/xx unknown
- NL NL54243D patent/NL54243C/xx active
-
1939
- 1939-02-04 CH CH207146D patent/CH207146A/de unknown
- 1939-02-04 US US254581A patent/US2356418A/en not_active Expired - Lifetime
- 1939-02-06 FR FR849946D patent/FR849946A/fr not_active Expired
Also Published As
| Publication number | Publication date |
|---|---|
| US2356418A (en) | 1944-08-22 |
| BE432577A (zh) | |
| CH207146A (de) | 1939-09-30 |
| FR849946A (fr) | 1939-12-05 |