DK49815C
(en )
1935-01-28
Procedure for the Production of Dihydroresorcin.
ES143273A1
(en )
1937-01-01
PROCEDURE FOR THE MANUFACTURE OF LEATHER
NL41814C
(en )
1937-10-15
METHOD FOR MANUFACTURE OF ARTIFICIAL LEATHER
SU46658A1
(en )
1936-04-30
Method of making tracked adhesive
DK54985C
(en )
1938-07-18
Method of Manufacture of Leather.
DK53858C
(en )
1937-11-15
Method of Making Leather or Leather-Like Materials.
CH182705A
(en )
1936-02-29
Process for the manufacture of footwear.
AT134398B
(en )
1933-07-25
Process for the manufacture of bespoke footwear.
DK52528C
(en )
1937-01-04
Procedure for Manufacturing Pressed Artificial Leather.
ES125435A1
(en )
1932-02-16
An improved process for the manufacture of leathers.
DK49146C
(en )
1934-08-20
Procedure for the manufacture of footwear.
CH208742A
(en )
1940-02-29
Method of making shoe heels.
DK54485C
(en )
1938-03-21
Method of Manufacture of Magnium.
DK50445C
(en )
1935-07-22
Procedure for the manufacture of zippers or zippers strings.
DK53436C
(en )
1937-08-09
Method of Making Decorative Covers.
DK50150C
(en )
1935-04-15
Method of Making Vinyl Esters.
ES133151A1
(en )
1934-03-16
An improved procedure in the manufacture of footwear.
DK50862C
(en )
1935-11-04
Method of Preparation of 2-Keto-1-gulonic acid.
DK52006C
(en )
1936-08-10
Method of Making Concentrated Casein.
ES130235A1
(en )
1933-05-16
A manufacturing process of artificial leather.
DK51216C
(en )
1936-02-03
Procedure for the manufacture of explosives.
ES129092A3
(en )
1933-02-01
Manufacturing process of imitation leather fabrics.
ES132500A3
(en )
1934-01-01
Procedure for the manufacture of footwear.
DK55677C
(en )
1939-01-09
Procedure for Manufacturing Artificial Leather.
DK53019C
(en )
1937-05-03
Method of Manufacture of Fertilizers.