FR760987A
(en )
1934-03-07
Electroplating method and apparatus
CH206044A
(en )
1939-07-15
Method and device for receiving frequency-modulated oscillations.
CH205107A
(en )
1939-06-15
Method and device for the production of fiberglass.
FR781611A
(en )
1935-05-18
Modulation method and system
CH160118A
(en )
1933-02-28
Method and device for ventilation of rooms.
CH158174A
(en )
1932-11-15
Method and device for the production of road surfaces.
FR748782A
(en )
1933-07-08
Improved Electroplating Method and Apparatus
CA326747A
(en )
1932-10-11
Process and apparatus for recovering bitumen
CH209603A
(en )
1940-04-30
Method and device for hardening glass plates and other glass objects.
AT135695B
(en )
1933-11-25
Method and apparatus for generating low-carbon gases.
CH173401A
(en )
1934-11-30
Method and device for producing filter plugs for cigarettes.
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.
CH201663A
(en )
1938-12-15
Method and device for the continuous conversion of coordinates.
AT144763B
(en )
1936-02-25
Method and device for extinguishing arcs.
CH189396A
(en )
1937-02-28
Method and device for the fermentation of solutions.
AT134381B
(en )
1933-07-25
Method and device for creating moving luminous images.
CH150236A
(en )
1931-10-31
Method and device for the production of artificial slate panels.
CH152993A
(en )
1932-02-29
Method and device for the continuous production of ice.
AT132083B
(en )
1933-02-25
Method and device for casting blank material.
AT157978B
(en )
1940-02-26
Method and device for drying.
AT132025B
(en )
1933-02-25
Process and apparatus for tanning.
CH144639A
(en )
1931-01-15
Method and device for metalworking by means of electrically generated heat.
FR816337A
(en )
1937-08-05
Method and apparatus for conditioning, or peeling, metallic bodies
CH210952A
(en )
1940-08-15
Device for making flycatchers.