CA407578A
(fr )
1942-09-22
Fluide non-aqueux de perforatrices
CA406105A
(fr )
1942-07-14
Fluide non-aqueux de forage
CA406398A
(fr )
1942-07-28
Composition de fluide a forer les puits
CA406140A
(fr )
1942-07-21
Installation a forer les puits d'huile
CA406828A
(fr )
1942-08-18
Dispositif de perceuse
CA407949A
(fr )
1942-10-13
Fluide a forage de puits d'huile
CA405011A
(fr )
1942-05-26
Outil a forer
CA402461A
(fr )
1942-01-27
Fleuret de perforatrice
AU118968B2
(en )
Rock drills
CA403888A
(fr )
1942-04-07
Perforatrice a roc
CA403889A
(fr )
1942-04-07
Perforatrice a roc
CA405567A
(fr )
1942-06-16
Perforatrice a roc
CA405580A
(fr )
1942-06-23
Perforatrice a roc
CA405582A
(fr )
1942-06-23
Perforatrice a roc
CA407143A
(fr )
1942-09-01
Perforatrice a roc
CA407365A
(fr )
1942-09-15
Perforatrice a roc
CA407454A
(fr )
1942-09-15
Perforatrice
CA406420A
(fr )
1942-07-28
Foret helicoidal
CA408831A
(fr )
1942-11-24
Accouplement a fluide
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
CA416489A
(fr )
1943-11-16
Fluide a jorage de puits
CA402106A
(fr )
1942-01-06
Perforatrice a fleuret amovible
CA403225A
(fr )
1942-03-03
Poussoir de perforatrice a roc