FR854341A - électrodes émettrices d'électrons - Google Patents
électrodes émettrices d'électronsInfo
- Publication number
- FR854341A FR854341A FR854341DA FR854341A FR 854341 A FR854341 A FR 854341A FR 854341D A FR854341D A FR 854341DA FR 854341 A FR854341 A FR 854341A
- Authority
- FR
- France
- Prior art keywords
- electron emitting
- emitting electrodes
- electrodes
- electron
- emitting
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired
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 |
---|---|---|---|
GB1470738A GB514854A (en) | 1938-05-17 | 1938-05-17 | Improvements in or relating to electron discharge devices and to thermionic cathodes therefor |
Publications (1)
Publication Number | Publication Date |
---|---|
FR854341A true FR854341A (fr) | 1940-04-10 |
Family
ID=10046090
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
FR854341D Expired FR854341A (fr) | 1938-05-17 | 1939-05-05 | électrodes émettrices d'électrons |
Country Status (2)
Country | Link |
---|---|
FR (1) | FR854341A (fr) |
GB (1) | GB514854A (fr) |
-
1938
- 1938-05-17 GB GB1470738A patent/GB514854A/en not_active Expired
-
1939
- 1939-05-05 FR FR854341D patent/FR854341A/fr not_active Expired
Also Published As
Publication number | Publication date |
---|---|
GB514854A (en) | 1939-11-20 |
Similar Documents
Publication | Publication Date | Title |
---|---|---|
FR861500A (fr) | Cyclotron | |
FR843638A (fr) | Turbo-pompe | |
FR855159A (fr) | Multiplicateur d'électrons | |
FR856372A (fr) | Cathode émettrice d'électrons | |
FR852351A (fr) | électrode continue | |
FR851749A (fr) | Perfectionnements aux électrodes émettrices d'électrons secondaires | |
FR859226A (fr) | Tube à luminescence cathodique | |
FR854341A (fr) | électrodes émettrices d'électrons | |
FR852052A (fr) | électrode d'activation | |
FR881199A (fr) | électrodes particulières pour multiplicateur d'électrons | |
FR872190A (fr) | Multiplicateur d'électrons | |
FR855095A (fr) | Insecticide | |
FR874688A (fr) | Cathode | |
FR835761A (fr) | Pulvérisateur | |
FR872458A (fr) | Multiplicateur d'électrons secondaires | |
FR878777A (fr) | Tube électronique | |
FR874739A (fr) | Isolateur | |
FR872433A (fr) | Multiplicateur d'électrons | |
FR851479A (fr) | Insecticides | |
FI20997A (fi) | Självbrännande elektrod | |
FR860861A (fr) | Isolateur de cathode | |
FR887279A (fr) | Multiplicateurs d'électrons | |
FR835743A (fr) | Insecticide | |
FR882472A (fr) | Multiplicateur d'électrons secondaires | |
FR847772A (fr) | Isolateur |