CA493818A
(fr )
1953-06-23
Systeme amplificateur de radio
CA498710A
(fr )
1953-12-22
Systeme radiorecepteur
CA493979A
(fr )
1953-06-30
Systeme a l'epreuve de l'effraction
CA497543A
(fr )
1953-11-10
Systeme d'antenne
CA498916A
(fr )
1953-12-29
Systeme d'antenne
CA496519A
(fr )
1953-09-29
Systeme de determination de position par radio
CA491764A
(fr )
1953-03-31
Systeme de communication par radio
CA490779A
(fr )
1953-02-24
Systeme de radiophare
CA491380A
(fr )
1953-03-17
Systeme de radiophare
CA492084A
(fr )
1953-04-14
Systeme de radiophare
CA489393A
(fr )
1953-01-06
Systeme de syntonisation de radio
CA492865A
(fr )
1953-05-12
Systeme radiogoniometrique
AU165256B2
(en )
1953-06-04
Automatic radio ranging system
CA497067A
(fr )
1953-10-20
Systeme de commande de radio
CA497232A
(fr )
1953-10-27
Systeme de radiobalisage
CA491192A
(fr )
1953-03-10
Systeme de radio-guidage
CA490682A
(fr )
1953-02-17
Systeme de navigation par radio
CA492573A
(fr )
1953-05-05
Systemes de radiogoniometrie
CA493839A
(fr )
1953-06-23
Dispositif de commutation emission-reception
CA490625A
(fr )
1953-02-17
Dispositif de radio-guidage et radioatterrissage a ondes decimetriques
CA489970A
(fr )
1953-01-27
Amplificateur
CA495992A
(fr )
1953-09-08
Amplificateur
CA495261A
(fr )
1953-08-11
Systemes d'antennes
CA491195A
(fr )
1953-03-10
Amplificateur de microndes
CA493505A
(fr )
1953-06-09
Radiogoniometrie