CA481892A
(fr )
1952-03-25
Lampe a electrons
CA481213A
(fr )
1952-02-19
Lampe a electrons
CA482713A
(fr )
1952-04-22
Lampe a electrons
CA485921A
(fr )
1952-08-19
Dispositifs a decharge d'electrons
CA484724A
(fr )
1952-07-08
Lampes a electrons
CA481458A
(fr )
1952-03-04
Lampes electroniques
AU157714B2
(en )
1952-11-06
Electron tubes
CA482032A
(fr )
1952-03-25
Cathode thermionique
CA487124A
(fr )
1952-10-07
Activation de cathode thermionique
CA479943A
(fr )
1952-01-01
Souffleur
AU160785B2
(en )
1953-01-15
Electron gun
CA488016A
(fr )
1952-11-11
Electrode emettrice d'electrons
AU1242352A
(en )
1952-11-06
Electron tubes
CA483427A
(fr )
1952-05-20
Dispositifs thermioniques
CA489295A
(fr )
1952-12-30
Lampe a rayons cathodiques
AU1364552A
(en )
1953-01-15
Electron gun
CA488943A
(fr )
1952-12-16
Microscope a electrons
CA487822A
(fr )
1952-11-04
Dispositifs a rayons cathodiques
CA486252A
(fr )
1952-09-02
Dispositifs a decharge d'electrons
CA483096A
(fr )
1952-05-06
Dispositifs a decharge d'electrons
CA481875A
(fr )
1952-03-18
Dispositifs a decharge d'electrons
CA488388A
(fr )
1952-11-25
Dispositifs a decharge d'electrons
CA489250A
(fr )
1952-12-30
Dispositifs a decharge d'electrons
CA480335A
(fr )
1952-01-15
Dispositif a decharge d'electrons
CA481211A
(fr )
1952-02-19
Dispositifs de decharge d'electrons