FR724382A
(en )
1932-04-26
Improvements in the construction of fans
GR1740B
(en )
1928-02-08
IMPROVEMENTS IN THE CONSTRUCTION OF RESPONSIBLE HOUSES AND DIVISIONS WITH WALLS DETACHED TO PIECES.
GB308489A
(en )
1929-03-28
Improvements relating to bearings and applications thereof
GB321823A
(en )
1929-11-21
Improvements in and relating to maps and the like
ES110353A1
(en )
1929-01-01
Improvements in scales and scales.
GB322972A
(en )
1929-12-19
Improvements in and relating to the manufacture of hair-dyes
ES110112A1
(en )
1928-12-16
Improvements in and related to generators.
GB325593A
(en )
1930-02-24
Improvements in and relating to educational and linguistic appliances
ES110348A1
(en )
1929-01-01
Improvements in scales and scales.
ES106314A1
(en )
1928-04-16
Improvements in or related to refrigerators.
GR1923B
(en )
1928-07-26
IMPROVEMENTS IN A NEW WAY APPLIED TO THE TRANSPORTATION OF SEAFLOWER AND TRAIN.
ES109007A1
(en )
1928-10-01
Improvements in the construction of roads and similar.
ES121921A1
(en )
1931-03-16
IMPROVEMENTS INTRODUCED IN BEARINGS
ES117610A2
(en )
1930-05-16
IMPROVEMENTS INTRODUCED IN THE SAME
AU918427A
(en )
1928-07-31
Improvements in and relating to clothes pegs
ES108500A3
(en )
1928-10-01
Improvements in or related to methods of making packages.
ES108061A1
(en )
1928-08-01
Improvements in mixers.
ES112640A1
(en )
1929-07-01
Improvements in and related to the manufacture of detonators.
ES107936A1
(en )
1928-07-16
Improvements in or related to the manufacture of nails.
ES117591A2
(en )
1930-05-01
IMPROVEMENTS INTRODUCED IN THE SAME
ES104783A1
(en )
1927-12-16
Improvements in or related to refrigerators.
FR648088A
(en )
1928-12-05
Improvements in the construction of mechanical lubricators
ES113414A1
(en )
1929-08-01
Improvements in the construction of roads and roads.
GB312131A
(en )
1929-05-21
Improvements in or relating to hairpins or the like
GB312132A
(en )
1929-05-21
Improvements in or relating to hairpins or the like