CA459516A
(fr )
1949-09-06
Systeme de communication a haute frequence
CA458832A
(fr )
1949-08-09
Systeme a frequence ultra haute
CA455875A
(fr )
1949-04-12
Cable a radiofrequence
AU144811B2
(en )
1949-08-04
High frequency antenna system
CA451188A
(fr )
1948-09-14
Systeme a frequence ultra-haute
CA455651A
(fr )
1949-04-05
Conducteur a frequence ultra-haute
AU2796149A
(en )
1949-08-04
High frequency antenna system
CA455767A
(fr )
1949-04-05
Systeme de radiocommunication
CA460009A
(fr )
1949-09-27
Systeme de radiocommunication
CA458949A
(fr )
1949-08-16
Attenuateur pour systemes a frequence ultra haute
CA457281A
(fr )
1949-06-07
Circuit a frequence ultra haute
CA456773A
(fr )
1949-05-17
Reception d'ondes a frequence modulee
CA459261A
(fr )
1949-08-30
Systeme transformateur de frequence electrique
CA460776A
(fr )
1949-11-01
Interrupteur a frequence ultra haute
CA458672A
(fr )
1949-08-02
Recepteur a ondes a frequence ultra haute
CA457216A
(fr )
1949-06-07
Systeme a decharges electriques a frequence ultra haute
CA452533A
(fr )
1948-11-09
Systeme a frequence ultra haute
CA452971A
(fr )
1948-11-30
Systeme a frequence ultra-haute
CA453417A
(fr )
1948-12-21
Systeme a frequence ultra-haute
CA454521A
(fr )
1949-02-08
Recepteur a frequence modulee
CA456763A
(fr )
1949-05-17
Systeme de communication
CA457376A
(fr )
1949-06-14
Systeme de communication
CA459021A
(fr )
1949-08-16
Systeme de communication
CA456746A
(fr )
1949-05-17
Systeme de radiocommunication
CA461738A
(fr )
1949-12-13
Systeme de transmission pour la radio