CH226040A
(en )
1943-03-15
Process for producing lettering printing.
FR855032A
(en )
1940-04-30
Printing device, especially for tabulating machines
SU55818A1
(en )
1938-11-30
Method for imparting uniform optical density to bar patterns on a chromium colloid
CH235878A
(en )
1944-12-31
Telecommunications exchange system with at least partial voter operation.
CH203811A
(en )
1939-03-31
Punching register machine.
SU31773A1
(en )
1933-08-31
Injector
SU31963A1
(en )
1933-09-30
Earthmoving machine
DK60313C
(en )
1942-11-09
Swing cylinder printing machine.
CH204819A
(en )
1939-05-31
Jacquard flat knitting machine.
SU73243A1
(en )
1947-11-30
Model plate for forming metal products
AT104778B
(en )
1926-11-25
Machine for moving plants.
GR2927B
(en )
1930-09-23
IMPROVEMENTS REGARDING THE METHOD AS A POULTRY MACHINE.
ES143558A1
(en )
1937-06-01
A process for obtaining dyes.
ES143399A1
(en )
1937-03-01
A process for obtaining dyes.
CH226215A
(en )
1943-03-31
Method for producing cross embroidery on embroidery machines.
ES144701A1
(en )
1941-05-16
A frame for typewriters.
DK58820C
(en )
1941-06-30
Engraving machine.
CH217504A
(en )
1941-10-31
Process for producing a resin-removed pinewood pulp.
ES147143A1
(en )
1941-03-01
A process for preparing cellulose ethers.
ES145452A1
(en )
1940-08-16
A process for obtaining b-alkoxyaldehydes.
DK73325C
(en )
1951-11-05
Cylinder paper machine.
DK73324C
(en )
1951-11-05
Cylinder paper machine.
ES128463A1
(en )
1933-01-16
A process for producing sodium nitrate.
DK60284C
(en )
1942-10-26
Perforating machine.
ES145556A1
(en )
1940-08-16
A process for decalcifying cobalt solutions.