CH290905A
(en )
1953-05-31
Process for the production of semi-pulp.
CH294685A
(en )
1953-11-30
Process for the production of α-manganese dioxide.
CH279915A
(en )
1951-12-31
Process for the production of artificial structures.
CH280432A
(en )
1952-01-31
Process for the production of protein threads.
AT168655B
(en )
1951-07-10
Process for the production of hollow bodies of polygonal, open or closed cross-section from concrete
CH262289A
(en )
1949-06-30
Process for the production of artificial structures.
AT173047B
(en )
1952-11-10
Process for the production of buildings
AT174372B
(en )
1953-03-25
Process for the production of acetals
AT170284B
(en )
1952-02-11
Process for the production of cell bodies
AT162374B
(en )
1949-02-25
Process for the production of artificial sponges
CH283770A
(en )
1952-06-30
Process for the manufacture of detergents.
AT164542B
(en )
1949-11-25
Process for the production of frost-resistant concrete or mortar
AT176493B
(en )
1953-10-26
Process for the production of lightweight building materials
AT177715B
(en )
1954-02-25
Process for the production of wood concrete
AT171694B
(en )
1952-06-25
Process for the production of new basic ethers
AT177105B
(en )
1953-12-28
Process for the production of building panels
CH288102A
(en )
1953-01-15
Process for the production of pressed building construction panels.
AT171175B
(en )
1952-05-10
Process for the production of foam concrete
AT180795B
(en )
1955-01-10
Process for the production of hollow profiles
AT178203B
(en )
1954-04-26
Process for the production of hardboard
AT170399B
(en )
1952-02-11
Process for the production of reinforced concrete rib ceilings
AT171176B
(en )
1952-05-10
Process for the production of 17α-methyl-pregnenverbindungen
AT171168B
(en )
1952-05-10
Process for the production of concrete
CH300332A
(en )
1954-07-31
Process for the production of B-phenyl-ethanol.
AT181698B
(en )
1955-04-12
Process for the production of pantothenaldehyde and its acetals