BE444765A - - Google Patents
Info
- Publication number
- BE444765A BE444765A BE444765DA BE444765A BE 444765 A BE444765 A BE 444765A BE 444765D A BE444765D A BE 444765DA BE 444765 A BE444765 A BE 444765A
- Authority
- BE
- Belgium
Links
Classifications
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01J—ELECTRIC DISCHARGE TUBES OR DISCHARGE LAMPS
- H01J31/00—Cathode ray tubes; Electron beam tubes
- H01J31/08—Cathode ray tubes; Electron beam tubes having a screen on or from which an image or pattern is formed, picked up, converted, or stored
- H01J31/50—Image-conversion or image-amplification tubes, i.e. having optical, X-ray, or analogous input, and optical output
- H01J31/506—Image-conversion or image-amplification tubes, i.e. having optical, X-ray, or analogous input, and optical output tubes using secondary emission effect
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DEF0004632 | 1941-03-10 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| BE444765A true BE444765A (zh) |
Family
ID=7084273
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| BE444765D BE444765A (zh) | 1941-03-10 |
Country Status (2)
| Country | Link |
|---|---|
| BE (1) | BE444765A (zh) |
| FR (1) | FR880054A (zh) |
-
0
- BE BE444765D patent/BE444765A/xx unknown
-
1942
- 1942-03-09 FR FR880054D patent/FR880054A/fr not_active Expired
Also Published As
| Publication number | Publication date |
|---|---|
| FR880054A (fr) | 1943-03-12 |