AT104722B
(en )
1926-11-25
Process for the production of fertilizers.
AT96155B
(en )
1924-02-25
Process for the production of unfired, manageable Dinas and silica stones.
CH152611A
(en )
1932-02-15
Process for the production of diazo preparations.
CH100241A
(en )
1923-07-16
Device for the production of hollow bodies.
AT121562B
(en )
1931-02-25
Process for the production of lightweight stones.
AT106741B
(en )
1927-06-25
Process for the production of tubes and similar hollow bodies by centrifugal casting.
CH100477A
(en )
1923-12-17
Process for the production of sodium nitrite.
AT108161B
(en )
1927-12-10
Process for the production of printing blocks.
AT108680B
(en )
1928-01-25
Process for the manufacture of handicrafts.
CH131732A
(en )
1929-02-28
Process for the production of printing blocks.
AT116528B
(en )
1930-02-25
Process for the production of road surfaces.
CH145438A
(en )
1931-02-28
Process for the production of primary ferrophosphate.
AT103983B
(en )
1926-08-25
Method and device for the production of glass ribbons.
CH125709A
(en )
1928-05-01
Process for the production of molten alumina.
CH145390A
(en )
1931-02-28
Process and furnace system for the production of molten cement.
AT106712B
(en )
1927-06-25
Process for the production of porous building materials.
AT109504B
(en )
1928-05-10
Process for the production of multi-part chocolate bodies.
AT121552B
(en )
1931-02-25
Process for the production of rapidly setting road surfaces.
AT121557B
(en )
1931-02-25
Process for the manufacture of colored ceramic products.
AT107956B
(en )
1927-11-25
Process for the production of cement stones.
AT130635B
(en )
1932-12-10
Process for the production of emulsions.
CH152812A
(en )
1932-02-29
Method and device for the production of cement.
AT107954B
(en )
1927-11-25
Process for the production of oxide hot cathodes.
AT109112B
(en )
1928-03-26
Process for the manufacture of oxide cathodes.
AT121563B
(en )
1931-02-25
Process for the production of artificial marble.