CH515186A
(en )
1971-11-15
Process for the production of cyanogen chloride
CH322260A
(en )
1957-06-15
Process for the production of N-methylol-polypyrrolidones
CH328070A
(en )
1958-02-28
Process for the production of potassium terephthalate
AT198229B
(en )
1958-06-25
Process for the production of coke containing iron ore
AT196355B
(en )
1958-03-10
Process for the production of metallurgical coke
CH318445A
(en )
1957-01-15
Process for the recovery of dimethylnitrosamine
AT198524B
(en )
1958-07-10
Process for the production of ore coke
CH321139A
(en )
1957-04-30
Process for the production of direct positives
AT199210B
(en )
1958-08-25
Process for reducing iron ores
AT180934B
(en )
1955-01-25
Process for the production of hydrogen chloride
AT189175B
(en )
1957-03-11
Process for the production of lactams
AT186271B
(en )
1956-07-25
Process for the desulphurization of pig iron for the production of high quality Thomas steel
AT186093B
(en )
1956-07-10
Process for the production of metallic electrodes
AT186094B
(en )
1956-07-10
Process for the production of metallic electrodes
AT189106B
(en )
1957-02-25
Process for the production of shaped bricks
AT183072B
(en )
1955-09-10
Process for the production of pure γ-hexachlorocyclohexane
CH317123A
(en )
1956-11-15
Process for the production of metal-containing tetra-aza-porphines
CH332837A
(en )
1958-09-30
Process for the direct production of positives
AT193343B
(en )
1957-11-25
Process for improving the stability of coking coal cake
CH322645A
(en )
1957-06-30
Process for the production of semi-pulp
AT187524B
(en )
1956-10-25
Process for the production of hydrogen cyanide
AT184594B
(en )
1956-02-10
Process for the reduction of ores
AT178355B
(en )
1954-05-10
Process for the production of sulfanilguanidine
AT180062B
(en )
1954-11-10
Process for the production of chloro-urethanes
CH325083A
(en )
1957-10-31
Process for the production of neutrocyanines