CA395102A
(fr )
1941-03-11
Methode a souder des tubes
CA394059A
(fr )
1941-01-21
Appareil a souder des tubes
CA395103A
(fr )
1941-03-11
Appareil a souder des tubes
CA395502A
(fr )
1941-03-25
Methode a souder
CA398821A
(fr )
1941-08-26
Appareil a fabriquer des tubes metalliques
CA394058A
(fr )
1941-01-21
Appareil a fabriquer des tubes soudes
CA396114A
(fr )
1941-04-29
Procede a souder des tuyaux
CA396786A
(fr )
1941-05-27
Appareil a souder
CA397773A
(fr )
1941-07-08
Appareil a souder
CA398665A
(fr )
1941-08-12
Appareil a souder
CA401843A
(fr )
1941-12-30
Procede a souder
CA399282A
(fr )
1941-09-16
Tronconneur de tubes metalliques
CA397647A
(fr )
1941-07-01
Tige a souder
CA391052A
(fr )
1940-09-03
Appareil a souder des tubes
CA393358A
(fr )
1940-12-24
Appareil a souder des tubes
CA395118A
(fr )
1941-03-11
Tige a souder
CA397246A
(fr )
1941-06-17
Tube metallique
CA397256A
(fr )
1941-06-17
Systeme a souder
CA397263A
(fr )
1941-06-17
Appareil automatique a souder
CA399216A
(fr )
1941-09-09
Appareil a fabriquer des tubes metalliques
CA390413A
(fr )
1940-07-30
Methode d'etirage de tubes
CA399621A
(fr )
1941-09-30
Transformateur a souder
CA400320A
(fr )
1941-10-28
Decapant a souder
CA398258A
(fr )
1941-07-29
Appareil a faconner des tubes
CA397267A
(fr )
1941-06-17
Appareil regulateur a souder