FR634793A
(en )
1928-02-25
Improvements in telegraphy of images and the like
GR1810B
(en )
1928-04-24
IMPROVEMENTS IN AND INCLUDING FRYING AND REDUCTION OF MINERALS AND TREATMENT OF OTHER MATERIALS.
ES106993A1
(en )
1928-06-01
improvements in roasting and reduction of minerals and similar treatments of other materials.
GB254987A
(en )
1926-07-15
Improvements in or relating to hair-pins and the like
ES107772A1
(en )
1928-07-16
Improvements in the chlorination of minerals and similar.
FR620936A
(en )
1927-05-02
Toothpicks and nailpicks
GR1493B
(en )
1927-05-07
IMPROVEMENTS IN AND IN RELATION TO EXPLOSIVES.
FR668406A
(en )
1929-10-31
Improvements in the treatment of phosphatic materials
ES119813A1
(en )
1930-10-16
Improvements in the treatment of minerals and similar materials.
FR657403A
(en )
1929-05-22
Aesthetic and orthopedic belt
FR702149A
(en )
1931-03-30
Improvements in the treatment of ores and similar materials
FR681060A
(en )
1930-05-09
Improvements in the treatment of artificial materials
GR2038B
(en )
1928-11-02
IMPROVEMENTS IN AND IN RELATION TO OIL BURNER.
FR638107A
(en )
1928-05-16
Improvements in the construction of devils and the like
GB274006A
(en )
1927-07-14
Improvements in means for improving the appearance of the face and features
GR1128B
(en )
1926-02-27
LIQUID FOR SAFE SKIN WELDING AND RUBBER IN GENERAL.
GR2111B
(en )
1929-01-14
TREATMENT FOR THE ADDITION OF FAT AND OIL.
FR686332A
(en )
1930-07-24
Improvements in the treatment of cellulosic materials
ES104646A1
(en )
1927-12-01
Perfeccionamientos in mowers and mechanical agavilladoras.
ES108994A1
(en )
1928-09-16
Improvements in the reduction of minerals.
DK39392C
(en )
1928-10-22
Sanding board with detachable handle and without nails and screws.
GR2008B
(en )
1928-10-06
CONCENTRATION AND DISPOSAL MACHINE.
GR1947B
(en )
1928-08-17
PERFECTIONS IN THE PRODUCTION OF IRON AND SULFUM OXIDE.
FR670488A
(en )
1929-11-29
Improvements in the manufacture of fuel agglomerates and the like
FR680255A
(en )
1930-04-28
Improvements in the treatment of hydrocarbon materials