AT104722B
(en )
1926-11-25
Process for the production of fertilizers.
FR588486A
(en )
1925-05-07
Colloid hardening process
FR581507A
(en )
1924-12-01
Phospho-nitrogen fertilizer
AT98971B
(en )
1925-01-10
Device for the production of ammonia by means of contact synthesis.
CH114040A
(en )
1926-03-01
Process for the production of hydrogen cyanide.
CH100241A
(en )
1923-07-16
Device for the production of hollow bodies.
CH86058A
(en )
1920-08-02
Device on milling machines for the production of wave profiles.
AT108127B
(en )
1927-11-25
Device for the production of saturated solutions.
CH85235A
(en )
1920-10-01
Device for drawing circles.
AT98959B
(en )
1925-01-10
Catalytic device for the synthetic production of ammonia.
CH109477A
(en )
1925-04-01
Process for the production of hydrogen cyanide.
DK33441C
(en )
1924-07-14
Procedure for the Synthetic Production of Ammonia.
AT91047B
(en )
1923-01-25
Device for the production of Holztabgeweben u. like
ES84889A1
(en )
1923-06-01
Improvements in the process of producing ammonia.
CH81594A
(en )
1919-06-16
Pan-like device for making Knöpfli
AT105031B
(en )
1926-12-27
Process for the production of viscose.
ES90135A1
(en )
1924-10-16
Improvements in the process of making ammonia by catalysis.
AT91101B
(en )
1923-02-10
Device for the production of photophonograms, in particular for the purposes of acoustic cinematography.
AT91483B
(en )
1923-02-26
Device for producing belts.
ES80762A1
(en )
1922-05-16
Apparatus for the production of acetylene.
CH103706A
(en )
1924-03-01
Device on milling machines for the production of wave profiles.
ES70419A1
(en )
1919-09-01
Ammonia synthesis procedure.
AT116578B
(en )
1930-02-25
Device for the production of pearl threads.
CH82977A
(en )
1919-11-01
Device for the production of soap powder
FR551576A
(en )
1923-04-09
Acetylene production apparatus