ES182178A1
(en )
1948-04-01
IMPROVEMENTS IN RADIOCRECEPTORS
ES174982A1
(en )
1947-03-16
IMPROVEMENTS IN THE PERFORMANCE OF ELECTROLISIS
ES180663A1
(en )
1948-01-01
IMPROVEMENTS IN RADIOCRECEPTORS
GR10349B
(en )
1945-04-20
SPECIAL WAY TO CONVERT COTTON IN CALLODI AND THE PREPARATION OF CELLOFAN.
ES175494A1
(en )
1946-12-01
IMPROVEMENTS IN THE CONSTRUCTION OF ALUVIÓN FILTERS
FR950456A
(en )
1949-09-28
Armrest and upright
GB640723A
(en )
1950-07-26
Improvements in and relating to microscopes
ES172337A1
(en )
1946-03-01
IMPROVEMENTS MADE IN THE MANUFACTURE OF METALOPLASTIC JOINTS
ES175118A1
(en )
1946-11-01
IMPROVEMENTS IN THE PREPARATION OF MELANINE
ES169255A1
(en )
1945-04-16
IMPROVEMENTS IN THE CONSTRUCTION OF TURBINES
ES171481A1
(en )
1945-12-16
MECHANISMS USED IN THE CONSTRUCTION OF TELARES.
ES170250A1
(en )
1945-08-01
IMPROVEMENTS IN THE CONSTRUCTION AND TENDIDOS DE ENARARADOS
ES170050A3
(en )
1945-07-16
IMPROVEMENTS IN THE MANUFACTURE OF HYDROCHLORINES
ES169913A1
(en )
1945-06-16
IMPROVEMENTS IN THE MANUFACTURE OF PORTALRETRATOS
ES168733A1
(en )
1945-05-16
IMPROVEMENTS IN THE MANUFACTURE OF STYLLOGRAFTS
ES169314A1
(en )
1945-05-01
IMPROVEMENTS IN THE CONSTRUCTION OF SIMPLE CLEANERS
ES169365A1
(en )
1945-05-01
IMPROVEMENTS IN THE MANUFACTURE OF COMPOTES AND SIMILAR
ES170507A1
(en )
1945-08-16
IMPROVEMENTS IN THE CONSTRUCTION OF ELASTIC WHEELS
ES172011A1
(en )
1946-02-01
IMPROVEMENTS IN THE CONSTRUCTION OF ROCKETS
ES172014A1
(en )
1946-02-01
IMPROVEMENTS IN THE CONSTRUCTION OF ROCKETS
ES172013A1
(en )
1946-02-01
IMPROVEMENTS IN THE CONSTRUCTION OF ROCKETS
ES172012A1
(en )
1946-02-01
IMPROVEMENTS IN THE CONSTRUCTION OF ROCKETS
ES172010A1
(en )
1946-02-01
IMPROVEMENTS IN THE CONSTRUCTION OF ROCKETS
ES172009A1
(en )
1946-02-01
IMPROVEMENTS IN THE CONSTRUCTION OF ROCKETS
ES169612A1
(en )
1945-05-16
IMPROVEMENTS INTRODUCED IN THE CONSTRUCTION OF GASÓGENOS