CH322260A
(en )
1957-06-15
Process for the production of N-methylol-polypyrrolidones
AT179024B
(en )
1954-07-10
Process for the production of cast cores for metal foundries
CH320017A
(en )
1957-03-15
Process for the production of titanium metal
CH313008A
(en )
1956-03-15
Process for the production of cast cores for the metal foundry
CH329721A
(en )
1958-05-15
Process for the manufacture of color couplers for color photography
AT185038B
(en )
1956-03-26
Process for the cooling of continuous casting molds
CH315654A
(en )
1956-08-31
Process for the production of molds for the precision casting process
CH329455A
(en )
1958-04-30
Process for the production of a casting mold for precision casting
AT177794B
(en )
1954-03-10
Process for the production of high quality cast iron
AT177795B
(en )
1954-03-10
Process for the production of high quality cast iron
CH305469A
(en )
1955-02-28
Process for the production of gray cast iron.
AT183874B
(en )
1955-11-25
Process for the production of casting molds for metal casting, in particular for precision casting
CH349857A
(en )
1960-10-31
Process for the production of solid mixtures for the production of aqueous phosphating solutions
AT186787B
(en )
1956-09-10
Process for the production of molds for the precision casting process
AT179386B
(en )
1954-08-25
Process for the production of molds for the precision casting process
AT202283B
(en )
1959-02-25
Process for the production of molds for precision casting
AT173802B
(en )
1953-01-26
Sprue for the molds for the production of steel mills
AT179026B
(en )
1954-07-10
Process for the production of metallic hollow bodies by centrifugal casting
AT185507B
(en )
1956-05-11
Process for the production of sand molds for metal casting
AT187248B
(en )
1956-10-25
Process for the production of light metal castings
AT197977B
(en )
1958-05-27
Process for the production of lead-containing iron or steel ingots
AT171409B
(en )
1952-05-26
Process for the production of sintered hard metal alloys
AT175019B
(en )
1953-05-26
Process for the production of molds for the precision casting process
AT181382B
(en )
1955-03-10
Process for the production of round bars by continuous casting of metallic materials
AT180410B
(en )
1954-12-10
Process for the production of copper-boron alloys