DK45473C
(en )
1932-03-29
Pre-alloy for use in the manufacture of copper alloys and the method of making them.
FR661217A
(en )
1929-07-31
Improvements in copper metallurgy
ES110500A1
(en )
1929-01-16
Perfeccionamientos in the manufacture of metals and alloys.
DK33313C
(en )
1924-06-02
METHOD OF REDUCTION OF METALS AND MANUFACTURE OF ALLOYS.
ES123674A1
(en )
1931-08-16
Improvements introduced in the manufacture of metal castings.
ES124842A1
(en )
1931-12-16
Improvements in the manufacture of moldajes or pieces of casting of metal.
DK38547C
(en )
1928-03-12
Alloys for use in the manufacture of electrical conductors.
CH138648A
(en )
1930-03-15
Steel alloy.
DK38936C
(en )
1928-07-02
Magnetic alloys, especially for use in the manufacture of telegraph and telephone cables.
ES116661A1
(en )
1930-02-16
Perfections in the manufacture of copper alloys.
ES119026A1
(en )
1930-08-16
Perfections in the manufacture of copper alloys.
FR653900A
(en )
1929-03-28
Advanced metal alloy
ES113959A1
(en )
1929-08-16
Improvements in the manufacture of iron and aluminum alloys.
ES114449A1
(en )
1929-09-16
Procedure for obtaining copper iron and steel.
FR715651A
(en )
1931-12-07
Improvements in the manufacture of copper alloys
ES114137A1
(en )
1929-08-16
Improvements in the fabrication of puddled iron ingots.
ES115042A1
(en )
1929-10-16
Improvements in steel alloys.
ES115035A1
(en )
1929-10-16
Improvements in steel alloys.
ES115034A1
(en )
1929-10-16
Improvements in steel alloys.
ES115701A3
(en )
1929-12-16
The manufacture in Spain of aluminum taps and their alloys.
DK44643C
(en )
1931-09-28
Method of Casting Metal and Casting Machine for Execution of the Method.
DK45167C
(en )
1932-02-01
Method for the manufacture of cellulosic metal sheets and the like.
FR661218A
(en )
1929-07-23
Improvements in copper metallurgy
FR668311A
(en )
1929-10-30
Improvements in copper metallurgy
FR668312A
(en )
1929-10-30
Improvements in copper metallurgy