SU22684A1
(en )
1931-09-30
Method of removing mouse from iron ores during sintering
FR725188A
(en )
1932-05-09
Advanced metallurgy furnace
FR594925A
(en )
1925-09-23
Extraction process
SU25527A1
(en )
1932-02-29
The method of obtaining gray iron for the manufacture of non-oxidizing objects
SU22688A1
(en )
1931-09-30
Method of freeing iron, steel or cast iron from mouse impurities
SU29320A1
(en )
1933-02-28
Method for iron aluminization
SU31210A1
(en )
1933-07-31
The method of oxidation of iron and steel products
SU50609A1
(en )
1936-11-30
The method of extraction of unwashed from alkaline garbage
SU21347A1
(en )
1931-07-31
Method of making molds for large castings
SU29215A1
(en )
1933-02-28
The method of obtaining resins
SU52085A1
(en )
1937-11-30
Method for producing methacrylic acid
SU23691A1
(en )
1931-10-31
Method of making seed dressing agents
SU21191A1
(en )
1931-07-31
Method of carburizing (carburizing) iron
SU44919A1
(en )
1935-11-30
Method for removing cinders from pyrite furnaces
SU23716A1
(en )
1931-10-31
Method of removing carbon from metal surfaces
SU25726A1
(en )
1932-03-31
A method of processing semimetallic sulfur ores
SU17212A1
(en )
1930-09-30
The method of obtaining ferrous sulfate
SU23371A1
(en )
1931-10-31
The method of obtaining caustic soda and soda
SU12166A1
(en )
1929-12-31
Method for producing butyric acid
SU15145A1
(en )
1930-04-30
The method of pickling sheet iron
SU22144A1
(en )
1931-08-31
Alloy for brushes of electrical machines and method of its manufacture
FR835581A
(en )
1938-12-26
Method of operation of an electron multiplier
FR592887A
(en )
1925-08-11
Metal extraction process
ES93215A3
(en )
1925-06-16
A process for making "Thomas" steel and retorting "Thomas" slag.
CH213620A
(en )
1941-02-28
Process to prevent scale formation on iron workpieces.