CH201230A
(en )
1938-11-30
Method and device for the production of glass threads.
CH213029A
(en )
1941-01-15
Method and device for spinning rayon.
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.
CH189396A
(en )
1937-02-28
Method and device for the fermentation of solutions.
CH185928A
(en )
1936-08-31
Device for making butter.
CH201663A
(en )
1938-12-15
Method and device for the continuous conversion of coordinates.
AT140710B
(en )
1935-02-25
Method and device for the production of cam sleepers.
AT144662B
(en )
1936-02-25
Method and device for heating the liquor from pulp digesters u. like
CH207833A
(en )
1939-12-15
Method and device for ventilating beehives.
CH166174A
(en )
1933-12-31
Method and device for producing weft coils.
AT157978B
(en )
1940-02-26
Method and device for drying.
CH185861A
(en )
1936-08-31
Device for the quick unbinding of cattle.
AT144763B
(en )
1936-02-25
Method and device for extinguishing arcs.
CH181103A
(en )
1935-11-30
Disinfection method.
SU46545A1
(en )
1936-04-30
The method of obtaining sulfur from gypsum
CH182753A
(en )
1936-02-29
Device for the graphic display of series of numbers.
CH198464A
(en )
1938-06-30
Method and device for producing screw threads.
CH175544A
(en )
1935-02-28
Method for the preparation of 1-chloro-3-N- (y-ethoxy-B-oxypropyl) -n-butylaminobenzene.
CH191282A
(en )
1937-06-15
File and method of making the same.
AT144796B
(en )
1936-02-25
Method and device for cleaning and sterilizing filters.
CH172134A
(en )
1934-09-30
Device for preheating blowtorches and the like.
AT155625B
(en )
1939-02-25
Process for the production of copolymers.
AT108110B
(en )
1927-11-25
Method and device for the electrolysis of chlor-alkalis.