CH131053A
(en )
1929-01-31
Process and device for melting glass, silicates and other minerals.
AT123960B
(en )
1931-07-25
Process for separating materials with different physical properties.
AT127073B
(en )
1932-02-25
Process for separating materials with different physical properties.
FR640920A
(en )
1928-07-24
Improvements in bottle closures
CH145433A
(en )
1931-02-28
Machine for clarifying and purifying liquids.
AT109183B
(en )
1928-03-26
Culture process.
FR642113A
(en )
1928-08-22
Filtration apparatus
AT112334B
(en )
1929-02-25
Process for desulfurizing viscose silk.
AT107034B
(en )
1927-08-10
Device for depositing and separating straight cigarettes.
AT116353B
(en )
1930-02-25
Process for refining cellulose material.
AT121405B
(en )
1931-02-25
Process for drying fuels.
AT116441B
(en )
1930-02-25
Device for dry separation of different types of materials.
AT116386B
(en )
1930-02-25
Device for bronzing objects.
FR613411A
(en )
1926-11-17
Material handling processes
AT109164B
(en )
1928-03-26
Method for weighing rayon.
CH142339A
(en )
1930-09-15
Device for turning eggs.
AT121534B
(en )
1931-02-25
Method for weighing natural silk.
CH125590A
(en )
1928-04-16
Electromedical apparatus.
AT108165B
(en )
1927-12-10
Process for cleaning petrol.
AT116362B
(en )
1930-02-25
Process for the desulfurization of structures made of viscose.
CA268809A
(en )
1927-03-08
Bookbinding process
AT127011B
(en )
1932-02-25
Process for powdering rubber goods.
FR633679A
(en )
1928-02-02
Ore concentration process
ES99910A1
(en )
1927-02-01
Improvements in filtering liquids.
AT121522B
(en )
1931-02-25
Process for the digestion of titanium-containing materials with acids.