CA402484A
(fr )
1942-01-27
Grattoir
CA403833A
(fr )
1942-03-31
Recuperation du mercaptan
CA403828A
(fr )
1942-03-31
Enlevement du mercaptan dans distillats d'hydrocarbures
CA403831A
(fr )
1942-03-31
Enlevement du mercaptan dans distillates d'hydrocarbures
CA408006A
(fr )
1942-10-13
Traitement des hydrocarbures
CA407151A
(fr )
1942-09-01
Traitement d'hydrocarbures
CA405535A
(fr )
1942-06-16
Traitement d'hydrocarbures
CA403913A
(fr )
1942-04-07
Convoyeur de bidons
CA407665A
(fr )
1942-09-29
Reduction du soufre
CA407601A
(fr )
1942-09-22
Procede au sulfite
CA407600A
(fr )
1942-09-22
Procede au sulfite
CA405370A
(fr )
1942-06-09
Enlevement du thionate dans solutions
CA405871A
(fr )
1942-07-07
Bidon
CA409543A
(fr )
1942-12-22
Traitement de gaz a teneur de soufre
CA404193A
(fr )
1942-04-21
Phare
CA404730A
(fr )
1942-05-12
Convoyeur
CA404466A
(fr )
1942-05-05
Convoyeur
CA408688A
(fr )
1942-11-17
Convoyeur
CA404917A
(fr )
1942-05-19
Convoyeur
CA404242A
(fr )
1942-04-21
Convoyeur
CA405679A
(fr )
1942-06-23
Desulfurisation du phenol alcoylique
CA409707A
(fr )
1942-12-29
Tire-manchon
CA403444A
(fr )
1942-03-17
Grattoir
CA407946A
(fr )
1942-10-13
Bidon a soupoudrer
CA403627A
(fr )
1942-03-24
Precipitation de zeine