CA447543A
(fr )
1948-03-30
Systeme pour la transmission d'ondes
CA449247A
(fr )
1948-06-22
Systeme de guide-ondes
CA448415A
(fr )
1948-05-11
Propagation d'ondes
CA447433A
(fr )
1948-03-23
Antenne de transmission
CA453484A
(fr )
1948-12-21
Systeme de radiation d'ondes
CA451482A
(fr )
1948-09-28
Systeme d'emetteur
CA446506A
(fr )
1948-02-03
Systeme de transmission
CA451182A
(fr )
1948-09-14
Systeme de transmission
CA452792A
(fr )
1948-11-23
Systeme transportable de transmission
CA448022A
(fr )
1948-04-20
Systeme d'antenne
CA452389A
(fr )
1948-11-02
Systeme d'antenne
CA449562A
(fr )
1948-06-29
Systeme de couplage
CA450769A
(fr )
1948-08-24
Systeme de couplage
CA447022A
(fr )
1948-03-02
Systeme recepteur de signaux a ondes
CA446349A
(fr )
1948-01-27
Systeme de transmission mecanique
CA448002A
(fr )
1948-04-20
Systeme et appareil de transmission
CA452994A
(fr )
1948-11-30
Systeme recepteur de signaux irradies
CA448335A
(fr )
1948-05-04
Systeme d'emetteur-recepteur
CA447794A
(fr )
1948-04-13
Systeme emetteur de signaux
CA448746A
(fr )
1948-05-25
Systeme de transmission de signaux
CA448848A
(fr )
1948-06-01
Systeme telephonique
CA449483A
(fr )
1948-06-29
Systeme telegraphique
CA449567A
(fr )
1948-06-29
Systeme telegraphique
CA449714A
(fr )
1948-07-06
Systeme telegraphique
CA454338A
(fr )
1949-01-25
Systeme de transmission d'ondes