| 4837522 |
Noise reducer for microwave amplifier |
Bernard Epsztein |
1989-06-06 |
| 4798993 |
Electron gun for electronic tubes |
Robert Duret |
1989-01-17 |
| 4590447 |
Delay line of the ceiling and ring type or of the ceiling and bar type |
— |
1986-05-20 |
| 4549112 |
Delay line for a travelling wave tube |
— |
1985-10-22 |
| 4399389 |
Travelling wave tube with coupled cavities and focusing by alternating permanent magnets and amplifying system comprising such a tube |
Francis Payen |
1983-08-16 |
| 4377770 |
Microwave delay line incorporating a conductor with a variable cross-section for a travelling-wave tube |
— |
1983-03-22 |
| 4358707 |
Insulated collector assembly for power electronic tubes and a tube comprising such a collector |
Bernard Delory, Gerard Euloge |
1982-11-09 |
| 4243914 |
Circulating fluid cooled delay line for high frequency tubes, and high frequency tubes having such a delay line |
Bernard Delory, Jean-Claude Kuntzmann |
1981-01-06 |
| 4243915 |
Delay line comprising coupled cavities and cooled by fluid-circulation |
— |
1981-01-06 |