CA416682A
(fr )
1943-11-30
Vase de forage
CA416489A
(fr )
1943-11-16
Fluide a jorage de puits
CA416484A
(fr )
1943-11-16
Fluide a forage de puits
CA416486A
(fr )
1943-11-16
Fluide a forage de puits
CA416488A
(fr )
1943-11-16
Fluide a forage de puits
CA416485A
(fr )
1943-11-16
Fluide a forage de puits d'huile
CA416400A
(fr )
1943-11-16
Fluide a forage du petrole
CA416679A
(fr )
1943-11-30
Vase de forage
CA416680A
(fr )
1943-11-30
Vase de forage
CA416681A
(fr )
1943-11-30
Vase de forage
CA417002A
(fr )
1943-12-14
Vase de forage
CA417332A
(fr )
1943-12-28
Vase a forage de puits
CA414613A
(fr )
1943-08-17
Dispositif de perforatrice hydraulique
CA415781A
(fr )
1943-10-12
Fleuret de perforatrice
CA412810A
(fr )
1943-05-25
Perforatrice a roc
CA414466A
(fr )
1943-08-10
Perforatrice a roc
CA416034A
(fr )
1943-10-26
Perforatrice a roc
CA410024A
(fr )
1943-01-12
Fluide a base d'huile pour forage
CA414465A
(fr )
1943-08-10
Tiroir de perforatrice a roc
AU120058B2
(en )
1945-06-02
Drilling machine
CA416922A
(fr )
1943-12-07
Perceuse
CA416921A
(fr )
1943-12-07
Perceuse hydraulique
CA410939A
(fr )
1943-03-09
Guide de perforatrice
CA416998A
(fr )
1943-12-14
Dispersion de vase a forage
CA416999A
(fr )
1943-12-14
Dispersion de vase a forage