AT181608B
(en )
1955-04-12
Process for refining metals
AT32027B
(en )
1908-02-25
Process for refining metals using metallic calcium.
AT26141B
(en )
1906-10-25
Process for refining zinc and other metals by distilling them in continuous operations.
AT32031B
(en )
1908-02-25
Process for refining sugar.
AT27651B
(en )
1907-02-25
Process for hardening copper and copper alloys.
CH41606A
(en )
1908-11-02
Process for tinning cast iron
AT31968B
(en )
1908-02-25
Process for hardening soft tantalum metal.
AT36182B
(en )
1909-02-10
Process for agglomeration of fine-grained or powdered ores.
AT23795B
(en )
1906-04-10
Process for the refinement of iron ores u. like
AT36421B
(en )
1909-02-25
Process for cracking mineral oils.
AT46643B
(en )
1911-02-25
Process for fragrant making soaps.
AT23097B
(en )
1906-02-26
Process for dewatering caustic alkalis.
AT23100B
(en )
1906-02-26
Process for recycling the waste water from the ammonia soda production
AU357805B
(en )
1905-12-19
Apparatus for treating ores by lixiviation
CH48976A
(en )
1910-12-16
Process for making objects having metal surfaces bright
AT22839B
(en )
1906-01-25
Process for cleaning tantalum metal.
CH75890A
(en )
1917-10-01
Process for detinning tinplate waste
AT43571B
(en )
1910-08-10
Process for processing refractory zinc-lead ores.
FR399977A
(en )
1909-07-13
Process for annealing metals
AT33450B
(en )
1908-06-25
Method for representing Kamphen.
FR359592A
(en )
1906-03-30
Process for refining metals using metallic calcium
AT38216B
(en )
1909-08-10
Process for the production of sheet metal grids.
AT68017B
(en )
1915-02-25
Process for detinning tinplate goods by chlorination.
AT23101B
(en )
1906-02-26
Process for absorbing gases or vapors.
AT46702B
(en )
1911-02-25
Process for the electrodeposition of copper.