CH82595A
(en )
1919-10-01
Process for leaching substances
CH85235A
(en )
1920-10-01
Device for drawing circles.
FR518251A
(en )
1921-05-21
Ore concentration process
CH78964A
(en )
1918-09-16
Process for smelting smelting materials
CH83536A
(en )
1919-12-16
Process for rolling out conical machine parts
CH82064A
(en )
1919-09-01
Method for emptying pulp digesters
CH83345A
(en )
1919-12-01
Process for impregnating porous bodies
CH98843A
(en )
1923-04-16
Process for heating workpieces to be welded together.
CH82982A
(en )
1919-11-01
Process for the extraction of soluble components from cellulose-containing substances
CH82426A
(en )
1919-10-01
Device for inserting staples
CH81398A
(en )
1919-11-17
Process for the extraction of minerals
AT82976B
(en )
1921-02-25
Process for venting or degassing liquids.
CH82032A
(en )
1919-08-16
Process for roasting fibrous materials
CH83040A
(en )
1919-11-01
Process for degassing the metal parts of vacuum tubes
FR523145A
(en )
1921-08-12
Process for volatilizing and decomposing hydrocarbons
FR538161A
(en )
1922-06-06
Method and apparatus for leaching
CH82444A
(en )
1919-10-01
Apparatus for lowering coffins
CH92493A
(en )
1922-01-02
Process for operating combustion turbines.
CH81571A
(en )
1919-06-16
Apparatus for felling trees
AT104557B
(en )
1926-11-10
Method of dressing seeds.
CH83306A
(en )
1919-12-01
Method of blasting root stocks
CH82022A
(en )
1919-08-16
Device for preparing food
CH83146A
(en )
1919-11-17
Device for swiveling the teeth of the setting wheels of calculating machines
AT98667B
(en )
1924-12-10
Process for treating farm manure.
CH78284A
(en )
1918-07-01
Process for compacting wood