CA376376A
(fr )
1938-09-13
Amplificateur
CA371909A
(fr )
1938-02-15
Amplificateur
CA372904A
(fr )
1938-04-05
Amplificateur
CA375463A
(fr )
1938-08-02
Amplificateur
CA376375A
(fr )
1938-09-13
Amplificateur
AU110072B2
(en )
Amplifier systems
CA374060A
(fr )
1938-05-24
Circuit d'amplificateur
CA374019A
(fr )
1938-05-24
Amplificateur electrique
CA377050A
(fr )
1938-10-11
Arsenobenzene-mono-sulfoxylate
CA375577A
(fr )
1938-08-02
Piano-violon
CA372770A
(fr )
1938-03-29
Telegraphone
CA373186A
(fr )
1938-04-19
Moissonneuse-batteuse
CA373588A
(fr )
1938-05-03
Flan photographique
CA373724A
(fr )
1938-05-10
Petrin
CA374408A
(fr )
1938-06-14
Photosculpture
CA374409A
(fr )
1938-06-14
Photosculpture
CA374410A
(fr )
1938-06-14
Defecateur
CA374498A
(fr )
1938-06-21
Oxazole-trimethinecyanine
CA374530A
(fr )
1938-06-21
Plaque a poncer
CA374585A
(fr )
1938-06-21
Defecateur
CA374662A
(fr )
1938-06-28
Dibenzoxacarbocyanine
CA378461A
(fr )
1938-12-20
Etai de mine
CA375883A
(fr )
1938-08-16
Fusee-turbine
CA376835A
(fr )
1938-10-04
Telegraphone
AU106979B2
(en )
1939-03-30
Suspensories