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
CH78133A
(en )
1918-11-16
Process for punching nuts or similar workpieces in a cold state
CH78964A
(en )
1918-09-16
Process for smelting smelting materials
CH77951A
(en )
1918-06-17
Means for closing holes in metal vessels
CH80083A
(en )
1919-02-01
Apparatus for opening tin cans, in particular tin cans
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
AT82952B
(en )
1921-02-25
Process for creating chains.
AU1189823A
(en )
1923-07-31
Process for recovering metals contained in ores
GR1646B
(en )
1927-10-21
METHOD FOR MANUFACTURING A FRAMEWORK IN NITROGEN, LIME, MAGNESIUM CYANAMIDE OR MIXTURES.
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.
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.
CA196082A
(en )
1920-01-13
Method of treating ore concentrates, etc.
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
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.
CA232600A
(en )
1923-07-10
Cyanogen recovery process
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