CH76116A
(en )
1917-11-01
Process for roasting pyrites, ores, etc. in a deck oven
AT91421B
(en )
1923-02-26
Method for riveting plates u. like
CH78964A
(en )
1918-09-16
Process for smelting smelting materials
CH77951A
(en )
1918-06-17
Means for closing holes in metal vessels
CA254320A
(en )
1925-10-06
Process for recovering metals contained in ores
AT109156B
(en )
1928-03-26
Device for refining electrolytically plated goods by thermal means and for annealing, melting and the like. like
AT90834B
(en )
1923-01-10
Device for lifting motor vehicles and other vehicles.
AT87473B
(en )
1922-02-25
Machine for tinning sheet metal and. like
AT82952B
(en )
1921-02-25
Process for creating chains.
AU1189823A
(en )
1923-07-31
Process for recovering metals contained in ores
DK22926C
(en )
1918-03-25
Procedure for Roasting Sulfur Ore, Ore, etc. in Floor Stoves.
AT71552B
(en )
1916-04-25
Process for bleaching with alkaline, oxygen-releasing solutions preserved by anti-catalysts.
ES83634A1
(en )
1923-04-16
A procedure for the reduction of complex minerals and the separation of the metals contained in them, in the electric furnace.
CH78927A
(en )
1918-09-16
Device for locking windows, doors, etc.
CH75755A
(en )
1918-02-16
Method for dividing containers
CH82032A
(en )
1919-08-16
Process for roasting fibrous materials
AT87391B
(en )
1922-02-25
Drive for movable grates for emptying shaft furnaces, silos or the like.
CH72382A
(en )
1916-05-01
Process for leaching, dissolving or mixing tanning materials or the like
GB134135A
(en )
1919-10-30
Improvements in Buckles.
AU153126A
(en )
1927-04-12
A new or improved apparatus for, reducing ores or other suitable materials
ES113560A1
(en )
1929-08-01
A process for separating cobalt and iron from iron-rich solutions as obtained by leaching calcined pyrites.
CH70775A
(en )
1915-10-16
Process for cutting lines in sheet metal
ES70364A3
(en )
1919-09-01
A procedure with the corresponding apparatus for concentrating lead ores.
AU2636325A
(en )
1925-12-18
Improvements in apparatus for roasting, sintering and otherwise treating fuel-containing ore andthe like by means ofthe Dwight and Lloyd process
ES62591A1
(en )
1916-08-01
Improvements in the process to treat iron ore, in order to recover iron and make steel from it.