CA379990A
(fr )
1939-03-14
Systeme telemetrique
CA382963A
(fr )
1939-07-25
Systeme telemetrique de navigation
CA378622A
(fr )
1939-01-03
Systeme de communication des sons
CA380305A
(fr )
1939-03-21
Systeme d'indications
CA379726A
(fr )
1939-02-28
Systeme selecteur de signaux
CA379450A
(fr )
1939-02-07
Systeme de signalisation
CA382192A
(fr )
1939-06-20
Systeme de signalisation
CA384895A
(fr )
1939-10-31
Systeme de signalisation
AU111074B2
(en )
1940-08-01
Remote control system
CA383395A
(fr )
1939-08-15
Systeme de commande a distance
CA385372A
(fr )
1939-11-28
Systeme de controle au loin
CA379423A
(fr )
1939-02-07
Systeme de communications
CA380381A
(fr )
1939-03-28
Systeme de communication
CA384635A
(fr )
1939-10-10
Systeme de communication
CA381960A
(fr )
1939-06-13
Systeme photo-electrique
CA383503A
(fr )
1939-08-22
Systeme de construction
CA382235A
(fr )
1939-06-20
Systeme de relais
CA382854A
(fr )
1939-07-25
Avertisseur
CA371611A
(fr )
1938-02-01
Systeme telemetrique
CA382329A
(fr )
1939-06-27
Systeme telephotographique
CA383481A
(fr )
1939-08-15
Systeme a production d'effects stereosoniques
CA382644A
(fr )
1939-07-11
Systeme de controle des trains
CA383114A
(fr )
1939-08-01
Systeme electrique
CA384455A
(fr )
1939-10-03
Systeme electrique
CA379692A
(fr )
1939-02-21
Systeme de trolley