CH182771A
(en )
1936-02-29
Process for welding non-austenitic iron and steel alloys.
CH232169A
(en )
1944-05-15
Method of brazing steel parts.
FR815521A
(en )
1937-07-13
Process improvements for metal rolling
CH190472A
(en )
1937-04-30
Process for welding iron.
CH182733A
(en )
1936-02-29
Process for bright pickling of metals.
CH203195A
(en )
1939-02-28
Process for the heat treatment of metals of the iron group and their alloys.
AT155615B
(en )
1939-02-25
Process for bright pickling of metals, especially iron.
CA326957A
(en )
1932-10-18
Iron and steel welding method
CH216207A
(en )
1941-08-15
Process for rolling magnesium and its alloys.
AT108256B
(en )
1927-12-10
Process for pickling iron and steel materials.
CH173461A
(en )
1934-11-30
Process for soldering aluminum and aluminum alloys.
CA326958A
(en )
1932-10-18
Method of welding iron and steel
CH225824A
(en )
1943-02-28
Process for pressing metals or metal alloys.
CA318127A
(en )
1931-12-15
Cast iron welding process
FR759875A
(en )
1934-02-13
New steel welding
AT139786B
(en )
1934-12-10
Methods and devices for stretching solid and hollow metal workpieces.
CH166045A
(en )
1933-12-15
Device for cutting through metal strips used as binding agents.
CA361099A
(en )
1936-10-13
Steel welding method
CA337662A
(en )
1933-12-05
Steel hardening process
CH227387A
(en )
1943-06-15
Process for welding steel.
AT139793B
(en )
1934-12-10
Method for stiffening the weld seams of sheet metal welds, in particular of containers.
IE12029L
(en )
1933-03-30
Welding method and machine.
FR763746A
(en )
1934-05-05
New steel for valves
DK50045C
(en )
1935-03-25
Abrasive tool for very hard metal alloys.
CA318604A
(en )
1932-01-05
Metal welding process