DK53964C
(en )
1937-12-06
Procedure for hardening iron and steel objects.
FR821603A
(en )
1937-12-09
Special steels
SU50155A1
(en )
1936-08-31
The method of obtaining steel for nitriding
DK54865C
(en )
1938-06-13
Procedure for the manufacture of iron or steel straps.
DK62260C
(en )
1944-05-15
Procedure for the manufacture of containers of galvanized steel or iron plate.
DK68696C
(en )
1949-03-07
Process for phosphating iron and steel.
FR825797A
(en )
1938-03-14
Austenitic steel
DK50876C
(en )
1935-11-11
Procedure for annealing cast iron pipes.
DK52363C
(en )
1936-11-30
Procedure for annealing cast iron pipes.
FR757277A
(en )
1933-12-22
Steel piston
DK45515C
(en )
1932-04-11
Procedure for the manufacture of hardened articles of nitriding iron and steel alloys.
DK54760C
(en )
1938-05-23
Procedure for Treating Silicate Ore.
GR5665B
(en )
1936-02-28
MEANS OF TEMPORARY NICKELING OF VARIOUS METAL OBJECTS.
DK44643C
(en )
1931-09-28
Method of Casting Metal and Casting Machine for Execution of the Method.
DK53169C
(en )
1937-06-07
Gas iron.
ES141709A3
(en )
1936-06-16
Procedure for working steels and other metals.
GR7759B
(en )
1938-11-05
METHOD OF HARDENING OF IRONS, IRON STEEL OR STEEL OBJECTS OF ALL KINDS.
DK47738C
(en )
1933-09-04
Procedure for Alumination of Articles of Iron and Steel.
AT152560B
(en )
1938-02-25
Iron annealing container.
DK54295C
(en )
1938-02-07
Method for surface treatment of iron structures.
CH186822A
(en )
1936-10-15
Iron.
DK52464C
(en )
1936-12-21
Steel plate swimmer for Dybhavstrawlnet.
DK50488C
(en )
1935-07-29
Procedure for forming metal coatings on iron objects.
DK55184C
(en )
1938-09-05
Procedure for forming metal coatings on iron objects.
ES128934A1
(en )
1933-01-16
A process for hardening iron, steel and the like