CA403351A
(fr )
1942-03-10
Agencement repetiteur a lampe thermionique
CA405779A
(fr )
1942-06-30
Lampe thermionique
CA409621A
(fr )
1942-12-29
Lampe thermionique
CA404668A
(fr )
1942-05-12
Lampe thermionique
CA402022A
(fr )
1942-01-06
Circuit de lampe thermionique
CA402328A
(fr )
1942-01-20
Circuit de lampe thermionique
CA402949A
(fr )
1942-02-17
Circuit de lampe thermionique
CA404376A
(fr )
1942-04-28
Cicuit de lampe thermionique
CA406961A
(fr )
1942-08-25
Circuit de lampe thermionique
CA405800A
(fr )
1942-06-30
Appareil a lampe thermionique
AU116474B2
(en )
1943-02-04
Improvements in thermionic valves
CA402192A
(fr )
1942-01-13
Amplificateur a lampe thermionique
AU424742A
(en )
1943-02-04
Improvements in thermionic valves
CA402161A
(fr )
1942-01-13
Soupape
CA402588A
(fr )
1942-02-03
Soupape
CA403567A
(fr )
1942-03-24
Soupape
CA403864A
(fr )
1942-03-31
Soupape
CA406317A
(fr )
1942-07-28
Soupape
CA408024A
(fr )
1942-10-13
Soupage
CA403306A
(fr )
1942-03-10
Assemblage de soupape
CA407722A
(fr )
1942-09-29
Assemblage de soupape
CA406695A
(fr )
1942-08-11
Structure de soupape
CA408398A
(fr )
1942-11-03
Structure de soupape
CA405574A
(fr )
1942-06-16
Enveloppe
CA407403A
(fr )
1942-09-15
Enveloppe