CH82422A
(en )
1919-10-01
Method of making embroidered cloth shoes
CH81893A
(en )
1919-08-01
Method of making embroidery
CH78530A
(en )
1918-08-01
Method of making aerial embroidery
CH80944A
(en )
1919-09-16
Method of making cords
CH79146A
(en )
1918-10-01
Method of making briquettes
CH76306A
(en )
1917-12-01
Method of making embroidery
CH76930A
(en )
1918-02-16
Method of making slippers
CH78614A
(en )
1918-12-16
Method of making buttons with embroidery
CH77105A
(en )
1918-12-02
Method of making buttons with embroidery
CH79811A
(en )
1919-01-16
Process for the production of artificial leather
CH79342A
(en )
1919-03-17
Process for the production of artificial leather
CH80235A
(en )
1919-07-01
Process for the production of shoe wax
CH82059A
(en )
1919-08-16
Process for the production of leather substitutes
CH78765A
(en )
1918-09-02
Method of making briquettes
CH80786A
(en )
1919-04-01
Method of making masonry
CH82062A
(en )
1919-08-16
Process for the production of leather substitutes
CH83115A
(en )
1919-11-17
Method of making buttons on embroidery machines
CH76792A
(en )
1918-07-01
Method of making underwear with embroidery
CH79954A
(en )
1919-01-16
Process for the production of coffee substitutes
CH82599A
(en )
1919-10-01
Process for the preparation of per compounds
CH88567A
(en )
1921-03-01
Process for the production of trinitroresorzin.
CH80810A
(en )
1919-04-16
Process for the manufacture of locking pins
CH77112A
(en )
1918-03-01
Process for making shoes
CH80236A
(en )
1919-02-17
Method of making glue
CH77364A
(en )
1918-04-01
Process for the production of wooden heels