CA483528A
(fr )
1952-05-27
Extirpateur
CA481507A
(fr )
1952-03-04
Chambres a air
CA481933A
(fr )
1952-03-25
Coupe-tuyaux
CA481302A
(fr )
1952-02-26
Epissoir
CA483711A
(fr )
1952-06-03
1-fluoro-2-tetradecanone
CA487876A
(fr )
1952-11-11
Repoussages de bouts de tubes
AU157714B2
(en )
1952-11-06
Electron tubes
CA481458A
(fr )
1952-03-04
Lampes electroniques
CA484724A
(fr )
1952-07-08
Lampes a electrons
CA481213A
(fr )
1952-02-19
Lampe a electrons
CA482713A
(fr )
1952-04-22
Lampe a electrons
CA481892A
(fr )
1952-03-25
Lampe a electrons
CA481229A
(fr )
1952-02-19
Lampes a vide
CA480715A
(fr )
1952-01-29
Lampes a vide
CA488609A
(fr )
1952-12-02
Lampe a ondes progressives
CA481276A
(fr )
1952-02-26
Lampes photoelectriques
CA480616A
(fr )
1952-01-29
Ensemble d'ajustage de tuyaux
CA488429A
(fr )
1952-11-25
Lampe d'accumulation
CA489295A
(fr )
1952-12-30
Lampe a rayons cathodiques
CA480282A
(fr )
1952-01-15
Fermeture de tube
AU1242352A
(en )
1952-11-06
Electron tubes
CA482339A
(fr )
1952-04-08
Chambre d'air de surete
CA486629A
(fr )
1952-09-16
Epaississeur de tube
AU159587B2
(en )
1952-06-05
Improvements indirect-view colour tubes
AU155693B2
(en )
1952-06-19
Television tube