SU29847A1
(en )
1933-04-30
Gas carburizing and nitriding of iron or steel products
SU26314A1
(en )
1932-05-31
Compound for cementation of iron and steel
SU37703A1
(en )
1934-07-31
The method of producing tannate iron
SU41300A1
(en )
1935-01-31
The method of protection not subject to phosphating surfaces of steel and iron
SU32506A1
(en )
1933-10-31
Machine to open the tap hole of metallurgical furnaces
GB371054A
(en )
1932-04-21
Improvements in or relating to the heat treatment of steel
SU39402A1
(en )
1934-10-31
Sliding caliber
SU31210A1
(en )
1933-07-31
The method of oxidation of iron and steel products
SU37288A1
(en )
1934-06-30
Metal form grease
SU27190A1
(en )
1932-07-31
The method of rubber coating wool and other fabrics
SU38134A1
(en )
1934-08-31
The method of obtaining crystals of boron arbide
SU38067A1
(en )
1934-08-31
Method of briquetting chips, dross and iron ore
SU27654A1
(en )
1932-08-31
The method of obtaining lead bleached from basic lead acetate and carbon dioxide
SU29909A1
(en )
1933-04-30
The method of obtaining chemical resistant varnish
SU34542A1
(en )
1934-02-28
Method for producing ferrous synergistic sodium
SU31558A1
(en )
1933-08-31
The method of impregnation of the skin
SU52046A1
(en )
1937-11-30
The method of smelting ferro tungsten and ferromolybdenum
SU30362A1
(en )
1933-05-31
Method of finding ores and conductors
SU39083A1
(en )
1934-10-31
Furnace for burning flotation tailings
SU50155A1
(en )
1936-08-31
The method of obtaining steel for nitriding
SU37244A1
(en )
1934-06-30
The way sheepskins before tanning
SU37495A1
(en )
1934-06-30
Mask
SU28346A1
(en )
1932-11-30
Method for determining friction in metal articles
GB322711A
(en )
1929-12-12
Improvements relating to oil retaining apparatus for ships' stern-tubes and the like
CA236612A
(en )
1923-12-25
Iron or steel hardening composition