GR2018B
(en )
1928-10-17
PERFECTIONS IN OR IN RELATION TO THE PRODUCTION OF CONCRETE OR CELLULAR CONCRETE AND SIMILAR MATERIAL.
ES97233A1
(en )
1926-05-01
Improvements in the manufacture of concrete and similar materials.
ES97289A1
(en )
1926-05-16
Improvements in the manufacture of concrete and similar materials.
GR1786B
(en )
1928-03-30
BUILDING MATERIAL AND HOW TO BUILD IT.
ES94254A1
(en )
1925-10-16
Improvements in the manufacture of elements and materials for construction.
GR1947B
(en )
1928-08-17
PERFECTIONS IN THE PRODUCTION OF IRON AND SULFUM OXIDE.
GR2470B
(en )
1929-10-07
PERFECTIONS IN OR IN RELATION TO FLOWER BODIES AND THE LIKE.
ES103369A1
(en )
1927-08-01
Method to produce porous materials and insulating porous materials obtained by the same method.
FR677289A
(en )
1930-03-06
Hollow stone in hardening material
GR2428B
(en )
1929-08-27
PERFECTIONS IN AND IN RELATION TO ASPHALT COMPOSITIONS.
ES115207A1
(en )
1929-11-01
Material for the manufacture of imitations of fine woods and similar.
GR2120B
(en )
1929-01-17
MODIFICATIONS IN MATERIAL REPLACEMENT OF CEMENT, IRON AND WOOD.
ES98237A1
(en )
1926-08-01
Improvements in the manufacture of tiles and cement plates or similar.
ES115881A1
(en )
1929-12-16
Perfeccionamientos in the mechanical manufacture of moldings and analogous works in the wood.
GR248B
(en )
1922-02-28
FINISHING IN AND IN RELATION TO CEMENT AND CONCRETE.
GR2903B
(en )
1930-09-02
PERFECTIONS IN THE INDUSTRIAL MANUFACTURE OF ARTIFICIAL LEATHER.
GR2404B
(en )
1929-08-05
PERFECTIONS IN AND IN RELATION TO SECONDARY ELECTRICAL ELEMENTS.
GR1852B
(en )
1928-05-26
PERFECTIONS IN THE METHOD OF COGNITION (CURING) OF CEMENT MATERIALS.
GR1150B
(en )
1926-03-26
PERFECTIONS IN CARBURATORS
ES92075A1
(en )
1925-04-16
Improvements in the manufacture of varnished tiles and tiles.
GR1231B
(en )
1926-07-08
IMPROVEMENTS IN TYPES OF TILES AND BRICKS.
ES97747A1
(en )
1926-06-16
Improvements in the manufacture of trusses.
ES101833A1
(en )
1927-04-16
Perfection in the manufacture of bituminous emulsions for buildings and other uses.
GR1493B
(en )
1927-05-07
IMPROVEMENTS IN AND IN RELATION TO EXPLOSIVES.
GR1144B
(en )
1926-03-17
PERFECTIONS IN AND IN RELATION TO POLYGRAPHY