CA408686A
(fr )
1942-11-17
Systeme a reseau de distribution electrique
CA404677A
(fr )
1942-05-12
Systeme de distribution de reseau electrique
CA406508A
(fr )
1942-08-04
Systeme de reseau de distribution
CA408620A
(fr )
1942-11-10
Systeme de reseau pour la distribution du courant
CA416890A
(fr )
1943-12-07
Systeme de distribution de reseau
CA406597A
(fr )
1942-08-04
Systeme de communication
CA408039A
(fr )
1942-10-13
Systeme de communications
CA404104A
(fr )
1942-04-14
Systeme de communications
CA404269A
(fr )
1942-04-21
Systeme de communications
CA407597A
(fr )
1942-09-22
Systeme de communications
CA402523A
(fr )
1942-01-27
Systeme telemoteur
CA404550A
(fr )
1942-05-05
Systeme electrique multiple a proportionner
CA403405A
(fr )
1942-03-10
Systeme telegraphique
CA403407A
(fr )
1942-03-10
Systeme telegraphique
CA406594A
(fr )
1942-08-04
Reseau telegraphique
CA403406A
(fr )
1942-03-10
Systeme telegraphique
CA405325A
(fr )
1942-06-09
Systeme gicleur
CA403996A
(fr )
1942-04-07
Systeme telephonique
CA406560A
(fr )
1942-08-04
Reseau telephonique
CA405758A
(fr )
1942-06-30
Systeme telephonique
CA405760A
(fr )
1942-06-30
Systeme telephonique
CA406280A
(fr )
1942-07-21
Reseau telephonique
CA403999A
(fr )
1942-04-07
Systeme telephonique
CA405759A
(fr )
1942-06-30
Systeme telephonique
CA409236A
(fr )
1942-12-08
Systeme telephonique