AT131352B
(en )
1933-01-25
Device for the automatic recording of a terrain profile, in particular a river base profile.
CH180984A
(en )
1935-11-30
Device for forming a couchette sledge using two skis.
CH160978A
(en )
1933-04-15
Device for making plant holes.
CH215046A
(en )
1941-05-31
Process for the preparation of a brown polyazo dye.
CH160674A
(en )
1933-03-15
Process for the preparation of an azo dye.
SU20705A1
(en )
1931-05-31
The method of application of magnetite
AT127095B
(en )
1932-02-25
Device for reproducing high-contrast or low-contrast negatives.
CH182731A
(en )
1936-02-29
Device for electroplating small metal objects.
CH210952A
(en )
1940-08-15
Device for making flycatchers.
CH206771A
(en )
1939-08-31
Device for making sharp-edged or obtuse-edged holes.
CH160361A
(en )
1933-03-15
Device for hammering scythes.
FR721640A
(en )
1932-03-05
Method and device for refloating all vessels sunk at any depth
CH200927A
(en )
1938-10-31
Process for the preparation of a plastic.
CH184513A
(en )
1936-05-31
Process for the production of a transparent, orange lacquer.
FR722255A
(en )
1932-03-15
Device for removing stumps, roots, piles, etc.
CH160348A
(en )
1933-02-28
Process for the preparation of a dye.
CH167722A
(en )
1934-03-15
Device for making earth pots.
ES123207A1
(en )
1931-07-01
A paper-cutting device.
CH154075A
(en )
1932-04-30
Device for removing weeds.
CH160131A
(en )
1933-02-28
Device for dividing fruits.
FR724627A
(en )
1932-04-29
Advanced hunting tank
DK48206C
(en )
1933-12-27
Automatic marking Ring slider.
CH175538A
(en )
1935-02-28
Process for the preparation of an oxynaphthetriazole.
CH175537A
(en )
1935-02-28
Process for the preparation of an oxynaphthetriazole.
ES123212A1
(en )
1931-09-16
A method and device for suppressing or varying rays.