GR2903B
(en )
1930-09-02
PERFECTIONS IN THE INDUSTRIAL MANUFACTURE OF ARTIFICIAL LEATHER.
ES117741A1
(en )
1930-05-16
Improvements in the manufacture of footwear.
ES118297A1
(en )
1930-06-16
Improvements in the manufacture of footwear.
ES120947A1
(en )
1931-01-01
Improvement in the manufacture of footwear.
ES118014A1
(en )
1930-06-01
Improvements in the manufacture of boots.
ES117327A1
(en )
1930-04-16
Improvements in the manufacture of artificial leather.
GR4061B
(en )
1933-02-16
PERFECTIONS IN THE MANUFACTURE OF CRUSHES.
ES117423A1
(en )
1930-06-01
Improvement in the manufacture of secafirms.
ES121002A1
(en )
1931-01-16
Improvements in the manufacture of gloves.
ES119903A2
(en )
1930-12-01
Improvements introduced in the manufacture of espadrilles.
ES120148A1
(en )
1930-11-16
Improvements in the manufacture of tiles.
ES118475A1
(en )
1930-07-01
Improvements in the manufacture of radiators.
ES114561A1
(en )
1929-09-16
Perfections in the manufacture of fabrics.
GR2886B
(en )
1930-08-19
SYSTEM FOR THE MANUFACTURE OF ARTIFICIAL MATERIALS.
ES106324A1
(en )
1928-06-16
Improvements in the manufacture of cathodes.
ES117167A3
(en )
1930-04-01
The manufacture of rubberized raincoats-coats.
ES110255A1
(en )
1929-04-01
Perfections introduced in the manufacture of corsets.
ES118965A1
(en )
1930-08-01
Improvements in the manufacture of films, lamellae or similar.
ES118966A1
(en )
1930-08-01
Improvements in the manufacture of films, lamellae or similar.
ES109426A1
(en )
1928-10-16
Improvements in the manufacture of footwear.
ES118335A3
(en )
1930-06-16
Improvements introduced in the manufacture of imitation goldsmiths.
ES121938A3
(en )
1931-03-16
Improvements in the manufacture of devones.
ES123333A1
(en )
1931-07-16
Improvements in the manufacture of footwear.
ES123471A3
(en )
1931-08-01
Improvements in the manufacture of footwear.
ES115058A1
(en )
1929-11-01
Improvement in the manufacture of footwear.