CA409777A
(fr )
1943-01-05
Lampe metallique a vapeur pour decharges electriques
CA410758A
(fr )
1943-02-23
Lampe a decharges dans l'espace
CA410658A
(fr )
1943-02-16
Lampe a decharges electriques
CA415358A
(fr )
1943-09-21
Lampe a decharge d'electrons
CA411105A
(fr )
1943-03-16
Lampe a decharges oscillatoires
CA417298A
(fr )
1943-12-21
Circuit de lampe a decharges
CA411761A
(fr )
1943-04-13
Lampe fluorescente
CA413126A
(fr )
1943-06-08
Tube fluorescent
CA411312A
(fr )
1943-03-23
Lampe a decharges electriques
CA411850A
(fr )
1943-04-13
Lampe a decharges electriques
CA417117A
(fr )
1943-12-14
Lampe a decharges electriques
CA415517A
(fr )
1943-09-28
Lampe a electrons
CA416823A
(fr )
1943-11-30
Lampe a electrons
CA407972A
(fr )
1942-10-13
Fabrication de lampes metalliques a vide
CA414582A
(fr )
1943-08-17
Condensation de vapeurs metalliques
CA410759A
(fr )
1943-02-23
Systeme de lampe a arc
IE17867L
(en )
1943-02-08
Discharge tube assembly
CA413218A
(fr )
1943-06-15
Lampe a vide
CA411506A
(fr )
1943-03-30
Tube repliable enduit de metal
CA404670A
(fr )
1942-05-12
Lampe a decharge d'electrons
CA407414A
(fr )
1942-09-15
Lampe a decharges a vapeurs de mercure
CA410659A
(fr )
1943-02-16
Entree des fils dans lampe a decharges electriques
CA416044A
(fr )
1943-10-26
Appareil a decharge d'electrons
CA416350A
(fr )
1943-11-09
Appareil a decharge d'electrons
CA411528A
(fr )
1943-03-30
Bande de support de tubes