CA397239A
(fr )
1941-06-17
Machine a fabriquer des tuyaux et des tubes
CA398802A
(fr )
1941-08-26
Machine a fabriquer des tuyaux enroules
CA401699A
(fr )
1941-12-23
Machine a plier les tuyaux
CA395113A
(fr )
1941-03-11
Fabrication de tubes
CA393974A
(fr )
1941-01-14
Joint de tuyaux de puits
CA393313A
(fr )
1940-12-24
Appareil a fabriquer des tuyaux ou tubes
CA397360A
(fr )
1941-06-17
Fabrication de tuyaux en fibres et ciment
CA397668A
(fr )
1941-07-01
Connexion de tuyaux
CA394575A
(fr )
1941-02-11
Accouplement de tuyaux
CA396264A
(fr )
1941-04-29
Accouplement de tuyaux
CA397502A
(fr )
1941-06-24
Accouplement de tuyaux
CA399392A
(fr )
1941-09-16
Accouplement de tuyaux
CA400645A
(fr )
1941-11-11
Appareil a fabriquer des tubes brases
CA395489A
(fr )
1941-03-25
Guide a placer les tuyaux verticalement
CA394381A
(fr )
1941-02-04
Pipe
CA394392A
(fr )
1941-02-04
Pipe
CA394637A
(fr )
1941-02-18
Pipe
CA394760A
(fr )
1941-02-25
Pipe
CA398055A
(fr )
1941-07-22
Pipe
CA400376A
(fr )
1941-11-04
Pipe
CA400904A
(fr )
1941-11-25
Pipe
CA395633A
(fr )
1941-04-01
Joint de tuyaux
CA399194A
(fr )
1941-09-09
Joint de tuyaux
CA399907A
(fr )
1941-10-14
Joint de tuyaux
CA399111A
(fr )
1941-09-09
Plieuse sans sable de tuyaux