CA410540A
(fr )
1943-02-09
Systeme producteur d'impulsions electriques
CA411151A
(fr )
1943-03-16
Systeme de transmission electrique
CA414587A
(fr )
1943-08-17
Connection electrique
CA415353A
(fr )
1943-09-21
Systeme telegraphique
CA410023A
(fr )
1943-01-12
Systeme electrique de communications
CA414777A
(fr )
1943-08-31
Systeme electrique de communications
CA410687A
(fr )
1943-02-16
Regulateur electrique
CA417467A
(fr )
1943-12-28
Systeme telegraphique a sequences de demarrage
CA411672A
(fr )
1943-04-06
Passage libre de cable
CA411673A
(fr )
1943-04-06
Margouillet de cable
CA413847A
(fr )
1943-07-13
Systeme de montage des fils electriques
CA416644A
(fr )
1943-11-30
Systeme stereoscopique
CA412802A
(fr )
1943-05-25
Systeme a ondes electriques
CA413330A
(fr )
1943-06-22
Systeme electrique de signalisation
CA415427A
(fr )
1943-09-28
Systeme de signaux electriques
CA416384A
(fr )
1943-11-16
Systeme electro-acoustique
CA409825A
(fr )
1943-01-05
Systeme telephonique
CA409856A
(fr )
1943-01-05
Systeme telephonique
CA409858A
(fr )
1943-01-05
Systeme telephonique
CA409859A
(fr )
1943-01-05
Systeme telephonique
CA410075A
(fr )
1943-01-19
Systeme telephonique
CA410266A
(fr )
1943-01-26
Systeme telephonique
CA410351A
(fr )
1943-02-02
Systeme telephonique
CA411301A
(fr )
1943-03-23
Systeme telephonique
CA411343A
(fr )
1943-03-23
Systeme telephonique