BE380871A - - Google Patents
Info
- Publication number
- BE380871A BE380871A BE380871DA BE380871A BE 380871 A BE380871 A BE 380871A BE 380871D A BE380871D A BE 380871DA BE 380871 A BE380871 A BE 380871A
- Authority
- BE
- Belgium
Links
Classifications
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01J—ELECTRIC DISCHARGE TUBES OR DISCHARGE LAMPS
- H01J17/00—Gas-filled discharge tubes with solid cathode
- H01J17/50—Thermionic-cathode tubes
- H01J17/58—Thermionic-cathode tubes with more than one cathode or anode
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| US381581XA | 1930-06-26 | 1930-06-26 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| BE380871A true BE380871A (en:Method) |
Family
ID=21898374
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| BE380871D BE380871A (en:Method) | 1930-06-26 |
Country Status (4)
| Country | Link |
|---|---|
| BE (1) | BE380871A (en:Method) |
| FR (1) | FR718823A (en:Method) |
| GB (1) | GB381581A (en:Method) |
| NL (1) | NL36486C (en:Method) |
-
0
- NL NL36486D patent/NL36486C/xx active
- BE BE380871D patent/BE380871A/xx unknown
-
1931
- 1931-06-18 FR FR718823D patent/FR718823A/fr not_active Expired
- 1931-06-24 GB GB18278/31A patent/GB381581A/en not_active Expired
Also Published As
| Publication number | Publication date |
|---|---|
| GB381581A (en) | 1932-09-26 |
| NL36486C (en:Method) | |
| FR718823A (fr) | 1932-01-29 |