CH305860A
(en )
1955-03-15
Process for manufacturing semiconductor elements.
CH469769A
(en )
1969-03-15
Process for the preparation of polybenzoxazinediones
AT176498B
(en )
1953-10-26
Method of retarding the setting of cements
AT175782B
(en )
1953-08-10
Process for the production of semi-pulp
AT180881B
(en )
1955-01-25
Method for numbering detonator wires
CH296591A
(en )
1954-02-28
Procedure for erecting structures.
AT177885B
(en )
1954-03-10
Method for obtaining antibioticis
AT190627B
(en )
1957-07-10
Process for homogenizing molten polyamides
AT175871B
(en )
1953-08-25
Process for the lightening of fibers
CH297565A
(en )
1954-03-31
Method for manufacturing commutators.
AT178425B
(en )
1954-05-10
Method for obtaining antibioticis
CH307001A
(en )
1955-05-15
Process for the manufacture of explosives.
AT174442B
(en )
1953-03-25
Process for the desulphurization of gases
AT172118B
(en )
1952-08-11
Process for cooling mines
CH322056A
(en )
1957-05-31
Process for the reduction of 3-keto-steroids to 3a-oxy-steroids
CH319634A
(en )
1957-02-28
Method for sealing the casings of instruments
AT176674B
(en )
1953-11-10
Process for hardening ethoxylin resins
AT176363B
(en )
1953-10-10
Process for hardening ethoxylin resins
AT177359B
(en )
1954-01-25
Process for the manufacture of explosives
AT185707B
(en )
1956-05-25
Process for making waterproof sandpaper
AT174976B
(en )
1953-05-26
Method for manufacturing commutators
AT189785B
(en )
1957-05-10
Procedure for erecting overhead line lattice masts
AT192928B
(en )
1957-11-11
Method for breaking down lignin
AT181080B
(en )
1955-02-10
Method for bending solid wood
AT181774B
(en )
1955-04-25
Process for making margarine