CA396326A
(fr )
1941-05-06
Lampe photoelectrique
CA395563A
(fr )
1941-04-01
Bloc de construction
CA395201A
(fr )
1941-03-11
Lampe photoelectrique
CA395918A
(fr )
1941-04-15
Lampe photo-electrique
CA386837A
(fr )
1940-02-13
Lampe photoelectrique
CA390314A
(fr )
1940-07-30
Lampe photo-electrique
CA396127A
(fr )
1941-04-29
Fabrication de tubes
CA395831A
(fr )
1941-04-15
Fabrication de tubes
CA395419A
(fr )
1941-03-25
Capsule de tube
CA395309A
(fr )
1941-03-18
Presse a etirer des tubes
CA401415A
(fr )
1941-12-09
Lampe multigrille
CA399144A
(fr )
1941-09-09
Nettoyeur de tubes
CA396230A
(fr )
1941-04-29
Cathode photo-electrique
CA401016A
(fr )
1941-11-25
Lampe a electrons
CA394306A
(fr )
1941-01-28
Lampe a electrons
CA398479A
(fr )
1941-08-05
Lampe a electrons
CA398354A
(fr )
1941-08-05
Chambre d'air de pneu
CA394929A
(fr )
1941-03-04
Chambre d'air de pneu
CA394366A
(fr )
1941-02-04
Chambre d'air de pneu
CA398285A
(fr )
1941-07-29
Chambre d'air de pneu
CA396151A
(fr )
1941-04-29
Accouplement de tubes
CA395027A
(fr )
1941-03-04
Aminoarsenobenzene bi-hydroxyalcoyle
CA401437A
(fr )
1941-12-16
Pince a pied-de-biche
CA397098A
(fr )
1941-06-10
K-strophanthine-b
CA398728A
(fr )
1941-08-19
Teinture diazoique