FR678211A
(en )
1930-03-20
Improvements in electron-emitting materials
GR2724B
(en )
1930-04-28
IMPROVEMENT IN MATERIAL REPLACEMENT OF CEMENT, IRON AND WOOD.
GR2120B
(en )
1929-01-17
MODIFICATIONS IN MATERIAL REPLACEMENT OF CEMENT, IRON AND WOOD.
GR1838B
(en )
1928-05-17
MATERIAL REPLACEMENT OF CEMENT, IRON AND WOOD.
FR714029A
(en )
1931-11-06
Humectants, detergents and emulsifiers
GR2824B
(en )
1930-07-09
MIXING MACHINE FOR CONCRETE (CONCRETE) AND OTHER BUILDING MATERIAL.
GR2791B
(en )
1930-06-09
METHOD AND ARRANGEMENT FOR THE SUPPLY OF MATERIAL FOR FRYING IN THE ROTATIVE OVENS BY ROAD, FOR THE USE OF CEMENT MATERIALS AND FLOORS.
ES109752A1
(en )
1929-02-01
Improvements in paints, cements, and similar materials.
AT132075B
(en )
1933-02-25
Kneading and mixing machine.
ES120863A1
(en )
1931-01-01
Improvements in the production of iron and chlorine compounds.
ES123696A3
(en )
1931-08-16
Improvements introduced in fumigation material.
ES118990A1
(en )
1930-08-16
Improvements in the manufacture of espadrilles and similar.
GR2888B
(en )
1930-08-19
MATERIALS AND AIR MAKING SYSTEM ARE MADE.
ES119813A1
(en )
1930-10-16
Improvements in the treatment of minerals and similar materials.
ES118741A1
(en )
1930-07-16
Improvements in continuous furnaces.
ES117610A2
(en )
1930-05-16
IMPROVEMENTS INTRODUCED IN THE SAME
ES118658A1
(en )
1930-09-01
Perfeccionamientos in the machines to sew espadrilles and similar templates.
ES116624A3
(en )
1930-05-01
Improvements in machinery for grinding, mixing and similar operations.
ES118232A1
(en )
1930-06-16
Improvements in bagging hoppers.
ES112260A1
(en )
1929-07-16
Improvements in substitution materials for construction or manufacture of iron and wood.
ES117937A3
(en )
1930-06-01
Improvements in mattresses.
ES118904A1
(en )
1930-08-01
Improvements in the construction and placement of piles.
AU2732830B
(en )
1930-10-21
Improvements in the manufacture of cement concrete goods and in cement concrete consturctional work
ES117689A1
(en )
1930-05-01
Improvements in the construction of foundations or foundations for posts and similar.
ES111404A1
(en )
1929-07-01
Procedure for obtaining iron and other oxide-free materials.