CH1144A
(en )
1889-10-11
Rotating annealing furnace for tempering forgeable cast iron
CH1198A
(en )
1889-10-03
Annealing furnace with retort
CH1561A
(en )
1890-02-28
Transportable cylinder furnace for heating and flattening
CH1662A
(en )
1890-03-15
Apparatus for hardening the inside of steel pipes
CH4070A
(en )
1892-02-15
Enamelled cast iron articles
ES9237A1
(en )
1889-05-16
An open retort furnace for the benefit of quicksilver and arsenic minerals.
CH99A
(en )
1889-01-11
Machine for pitting palm nuts
CH295A
(en )
1889-03-04
Apparatus for aligning several shafts by lowering them to facilitate their retraction
ES9843A1
(en )
1889-09-16
A compound for welding, tempering, treating and refining steel.
CH148A
(en )
1889-01-25
Mantle regulir filling furnace
CH1019A
(en )
1889-08-31
Peening machine
CH356A
(en )
1889-03-16
Peening machine
ES10002A1
(en )
1889-11-01
Procedure for obtaining iron silicate.
CH1678A
(en )
1890-04-15
Drill steel
CH42209A
(en )
1909-01-02
Crucible melting furnace for melting welding iron, fluoro iron and steel
DK26212C
(en )
1920-06-28
Apparatus for controlling the temperature of incandescent iron and steel.
FR487579A
(en )
1918-07-12
Carrier chain for reheating furnaces, annealing furnaces and for all heat treatment furnaces
CH1495A
(en )
1889-12-31
Metal bit plates for easier production of bit
FR327984A
(en )
1903-08-28
New rapid carburizing process for steels, irons, cast irons, etc.
FR4785E
(en )
1905-10-16
New rapid carburizing process for steels, irons, cast irons, etc.
CH345A
(en )
1889-03-16
Improved thermo-electric furnace battery
ES11264A1
(en )
1890-12-16
Improvements in the process of treating metal ores.
ES10156A1
(en )
1889-12-16
Improvements in oscillating furnaces for melting metals.
CH2413A
(en )
1890-11-29
Machine for engraving steel and metal rules
AT26322B
(en )
1906-11-10
Process and furnace for annealing and superficial oxidizing of mainly sheet-shaped iron and steel pieces.