CA397848A
(fr )
1941-07-08
Procede a griller le ciment
CA395563A
(fr )
1941-04-01
Bloc de construction
CA398012A
(fr )
1941-07-15
Fabrication du ciment
CA399376A
(fr )
1941-09-16
Fabrication du ciment
CA393934A
(fr )
1941-01-14
Chalumeau
CA400841A
(fr )
1941-11-18
Chalumeau
CA400843A
(fr )
1941-11-18
Chalumeau
CA400842A
(fr )
1941-11-18
Chalumeau
CA390706A
(fr )
1940-08-13
Appareil a calciner le ciment
CA398225A
(fr )
1941-07-29
Cheminee
CA400577A
(fr )
1941-11-11
Construction de four
CA394475A
(fr )
1941-02-04
Construction de four
CA399966A
(fr )
1941-10-14
Construction de four
CA400576A
(fr )
1941-11-11
Construction de four
CA398999A
(fr )
1941-09-02
Production d'anhydrite
CA401758A
(fr )
1941-12-30
Monture de pierre precieuse
CA397864A
(fr )
1941-07-08
Refractaire
CA396160A
(fr )
1941-04-29
Foyer
CA397625A
(fr )
1941-07-01
Procede de chloration
CA397627A
(fr )
1941-07-01
Procede de chloration
CA397626A
(fr )
1941-07-01
Procede de chloration
AU116097B2
(en )
1942-11-12
Lighters
CA399771A
(fr )
1941-10-07
Monture de bijou
CA398207A
(fr )
1941-07-22
Chaudiere sans fumee
CA401071A
(fr )
1941-12-02
Paroi de tuyau de cheminee