CA350843A
(fr )
1935-06-11
Methode a souder le cuivre
CA353206A
(fr )
1935-09-24
Methode a souder des alliages de cuivre
CA350849A
(fr )
1935-06-11
Methode a souder
CA354433A
(fr )
1935-11-26
Methode a souder
CA350853A
(fr )
1935-06-11
Methode a souder electriquement
CA350288A
(fr )
1935-05-14
Methode a souder a l'arc
CA350286A
(fr )
1935-05-14
Methode a souder par etincelles electriques
CA349941A
(fr )
1935-04-30
Procede a souder
CA347128A
(fr )
1935-01-01
Appareil a souder
CA347621A
(fr )
1935-01-22
Appareil a souder
CA350160A
(fr )
1935-05-07
Appareil a souder
CA353808A
(fr )
1935-10-29
Appareil a souder
CA354927A
(fr )
1935-12-24
Appareil a souder
CA329428A
(fr )
1933-01-17
Methode de fonte du cuivre
CA331102A
(fr )
1933-03-21
Methode de soudure
CA350659A
(fr )
1935-06-04
Appareil electrique a souder
CA350848A
(fr )
1935-06-11
Appareil electrique a souder
CA350593A
(fr )
1935-05-28
Methode a enlever du metal
CA354502A
(fr )
1935-12-03
Soudeur electrique
CA353030A
(fr )
1935-09-17
Methode d'affinage de metaux
CA322678A
(fr )
1932-05-24
Procede a souder le cuivre
CA353124A
(fr )
1935-09-17
Methode a joindre des corps metalliques
CA342740A
(fr )
1934-07-03
Methode a souder
CA342741A
(fr )
1934-07-03
Methode a souder
CA351656A
(fr )
1935-07-16
Appareil a reduction de metaux