CA374841A
(fr )
1938-07-05
Metaux relies
CA372011A
(fr )
1938-02-22
Alliage de cuivre, etain, phosphore et zinc
CA372354A
(fr )
1938-03-08
Alliage
CA372580A
(fr )
1938-03-15
Alliage
CA372581A
(fr )
1938-03-15
Alliage
CA375804A
(fr )
1938-08-16
Alliage
CA376385A
(fr )
1938-09-13
Alliage de cuivre, de silicium et d'aluminium
CA373996A
(fr )
1938-05-24
Compose metallique
AU107417B2
(en )
1939-05-25
Improvements insteel alloys
CA376835A
(fr )
1938-10-04
Telegraphone
CA374498A
(fr )
1938-06-21
Oxazole-trimethinecyanine
AU106979B2
(en )
1939-03-30
Suspensories
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
CA374530A
(fr )
1938-06-21
Plaque a poncer
CA374585A
(fr )
1938-06-21
Defecateur
CA374662A
(fr )
1938-06-28
Dibenzoxacarbocyanine
CA375577A
(fr )
1938-08-02
Piano-violon
CA375883A
(fr )
1938-08-16
Fusee-turbine
CA378461A
(fr )
1938-12-20
Etai de mine