CA409621A
(fr )
1942-12-29
Lampe thermionique
CA404668A
(fr )
1942-05-12
Lampe thermionique
CA405779A
(fr )
1942-06-30
Lampe thermionique
CA403351A
(fr )
1942-03-10
Agencement repetiteur a lampe thermionique
CA402024A
(fr )
1942-01-06
Dispositif a electrons
CA409372A
(fr )
1942-12-15
Dispositif a electrons
CA402192A
(fr )
1942-01-13
Amplificateur a lampe thermionique
CA402949A
(fr )
1942-02-17
Circuit de lampe thermionique
CA404376A
(fr )
1942-04-28
Cicuit de lampe thermionique
CA402022A
(fr )
1942-01-06
Circuit de lampe thermionique
CA402328A
(fr )
1942-01-20
Circuit de lampe thermionique
CA406961A
(fr )
1942-08-25
Circuit de lampe thermionique
CA407572A
(fr )
1942-09-22
Appareil distributeur de mousse
CA408879A
(fr )
1942-11-24
Appareil a telefac-similes
CA402588A
(fr )
1942-02-03
Soupape
CA402161A
(fr )
1942-01-13
Soupape
CA403567A
(fr )
1942-03-24
Soupape
CA406317A
(fr )
1942-07-28
Soupape
CA403864A
(fr )
1942-03-31
Soupape
CA408024A
(fr )
1942-10-13
Soupage
CA402434A
(fr )
1942-01-27
Dispositif de soupape
CA404659A
(fr )
1942-05-12
Dispositif thermionique a decharges
CA408511A
(fr )
1942-11-10
Appareil de refrigeration
CA402179A
(fr )
1942-01-13
Appareil frigorifique
CA403480A
(fr )
1942-03-17
Appareil frigorifique