CH225539A
(en )
1943-02-15
Method and device for the production of synthetic fibers.
CH205107A
(en )
1939-06-15
Method and device for the production of fiberglass.
CH160118A
(en )
1933-02-28
Method and device for ventilation of rooms.
CH152869A
(en )
1932-02-29
Method and device for denicotinization of tobacco.
CH158174A
(en )
1932-11-15
Method and device for the production of road surfaces.
AT107988B
(en )
1927-11-25
Method and device for processing cellulose.
AT127792B
(en )
1932-04-11
Process for the preparation of amino alcohols.
CH173401A
(en )
1934-11-30
Method and device for producing filter plugs for cigarettes.
CH152812A
(en )
1932-02-29
Method and device for the production of cement.
AT140710B
(en )
1935-02-25
Method and device for the production of cam sleepers.
CH198858A
(en )
1938-07-15
Method and device for preventing self-ignition of haysticks.
AT111009B
(en )
1928-10-25
Method and device for making collars.
CH147360A
(en )
1931-06-15
Method and device for controlling animal pests.
AT108110B
(en )
1927-11-25
Method and device for the electrolysis of chlor-alkalis.
CH144066A
(en )
1930-12-15
File and method of making the same.
AT121847B
(en )
1931-03-10
Method and device for the production of knotted carpets.
CH174108A
(en )
1934-12-31
Method and device for producing perspective drawings.
AT127083B
(en )
1932-02-25
Method and device for reinforcing insoles.
CH152993A
(en )
1932-02-29
Method and device for the continuous production of ice.
AT116356B
(en )
1930-02-25
Method and device for treating tissues.
AT127012B
(en )
1932-02-25
Method and device for leaching clippings and. like
AT136583B
(en )
1934-02-26
Method and device for processing raw tobacco.
AT157978B
(en )
1940-02-26
Method and device for drying.
CH150236A
(en )
1931-10-31
Method and device for the production of artificial slate panels.
AT108627B
(en )
1928-01-25
Method and device for the production of spiral-shaped incandescent bodies.