| 5334085 |
Process for the manufacture of an impregnated cathode and a cathode obtained by this process |
— |
1994-08-02 |
| 4910079 |
Method for the fabrication of an impregnated cathode and cathode obtained thereby |
Serge Vilminot, Dominique Brion, Bernard Carriere, Véronique HEBERT |
1990-03-20 |
| 4494035 |
Thermoelectric cathode for a hyperfrequency valve and valves incorporating such cathodes |
Pierre Palluel |
1985-01-15 |
| 4471266 |
Delay line for a traveling-wave tube cooled by heat pipes and a traveling-wave tube comprising a delay line of this type |
M. Georges Fleury |
1984-09-11 |
| 4459323 |
Process for producing an impregnated cathode with an integrated grid, cathode obtained by this process and electron tube equipped with such a cathode |
Didier Grauleau |
1984-07-10 |
| 4429250 |
Direct heating cathode for high frequency thermionic tube |
Guy Clerc |
1984-01-31 |
| 4427916 |
Heating element for indirectly heated cathode and method for the manufacture of such an element |
— |
1984-01-24 |
| 4393328 |
Hot cathode, its production process and electron tube incorporating such a cathode |
Pierre Palluel |
1983-07-12 |
| 4302702 |
Thermionic cathode having an embedded grid, process for its fabrication, and high frequency electron tubes using such a cathode |
Jean Montgaillard |
1981-11-24 |