CA464880A
(fr )
1950-05-02
Systeme de signaux
CA466307A
(fr )
1950-07-04
Systeme d'aimant permanent
CA453899A
(fr )
1949-01-04
Aimant permanent
CA478982A
(fr )
1951-11-27
Aimants permanents
CA462595A
(fr )
1950-01-24
Stabilisateur magnetique
CA462338A
(fr )
1950-01-10
Relais magnetique
AU147271B2
(en )
1950-03-09
Pole toppin
CA464705A
(fr )
1950-04-25
Fabrication d'aimants permanents
AU152392B2
(en )
1950-08-10
Permanent magnet stucture fora loudspeaker
CA463929A
(fr )
1950-03-21
Systeme d'enregistrement
CA440508A
(fr )
1947-04-01
Aimant permanent
CA462915A
(fr )
1950-01-31
Systeme telegraphique
CA462716A
(fr )
1950-01-24
Systeme telegraphique
CA465589A
(fr )
1950-05-30
Systeme de chiffrage mecanique
CA469477A
(fr )
1950-11-21
Moteurs electromagnetiques
CA465881A
(fr )
1950-06-13
Systeme electrique
CA465404A
(fr )
1950-05-23
Systeme electrique
CA466209A
(fr )
1950-06-27
Systeme electrique
CA463594A
(fr )
1950-03-07
Systeme electrique
CA464683A
(fr )
1950-04-25
Systeme electrique
CA464850A
(fr )
1950-05-02
Systeme electrique
CA465403A
(fr )
1950-05-23
Systeme electrique
CA465560A
(fr )
1950-05-30
Systeme electrique
CA462530A
(fr )
1950-01-17
Systeme de signalisation
CA462914A
(fr )
1950-01-31
Systeme de signalisation