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DK5172C
(en)
|
|
Procedure for Melting and Concentration of Unroasted Sulfide Ores.
|
|
DK5288C
(en)
|
|
Procedure for Treatment of Copper Ore.
|
|
DK3327C
(en)
|
|
Procedure with associated Apparatus for the Treatment of Impure and Melting Sulfur Ores
|
|
DK5014C
(en)
|
|
Apparatus for the treatment of slag and the like for the manufacture of cement and the like.
|
|
DK4499C
(en)
|
|
Procedure for Mining Metals of Any Kind.
|
|
DK3255C
(en)
|
|
Apparatus for amalgamation of gold and other ores.
|
|
FR322417A
(en)
|
|
Conveyors for retort furnaces and other applications
|
|
DK5193C
(en)
|
|
Procedure for the production of gas and coke.
|
|
CH25372A
(en)
|
|
Underwind furnace
|
|
DK5160C
(en)
|
|
Apparatus for automatic wetting of soil and the like.
|
|
CH26397A
(en)
|
|
Watch escapement
|
|
DK4654C
(en)
|
|
David for Raising and Lowering Ships.
|
|
CH27050A
(en)
|
|
Watch improvement
|
|
FR318374A
(en)
|
|
Improvements to melting furnaces
|
|
CH24914A
(en)
|
|
Calendar watch
|
|
DK4580C
(en)
|
|
Apparatus for the production of oil and gelatine from fish and the like.
|
|
DK5011C
(en)
|
|
Procedure for the production of pure oil from fish and the like.
|
|
DK2744C
(en)
|
|
Device for Assembly and Separation of Centrifuge Parts.
|
|
DK3845C
(en)
|
|
Procedure for Treatment of Compound, Sulfur-containing Ores.
|
|
DK5298C
(en)
|
|
Procedure and Apparatus for the Production of Transparent Linoleum.
|
|
CH27668A
(en)
|
|
Roaster
|
|
DK5048C
(en)
|
|
Procedure and Device for Propagation and Leaching of Mercury Cathodes under Uniform Conditions.
|
|
FR321154A
(en)
|
|
Improvements to inclined retort furnaces
|
|
DK2986C
(en)
|
|
Apparatus at Furnaces for Smelting of fusible, zinc-rich Sulfur ores.
|
|
CH23761A
(en)
|
|
pocket watch
|