CH225539A
(en )
1943-02-15
Method and device for the production of synthetic fibers.
CH201230A
(en )
1938-11-30
Method and device for the production of glass threads.
CH207058A
(en )
1939-09-30
Process and device for the production of glass fibers.
CH205107A
(en )
1939-06-15
Method and device for the production of fiberglass.
CH217733A
(en )
1941-11-15
Method and device for the production of spinnable man-made staple fibers.
CH176940A
(en )
1935-05-15
Process for the production of polyvinyl esters.
CH158174A
(en )
1932-11-15
Method and device for the production of road surfaces.
AT138141B
(en )
1934-06-25
Method and device for the production of hollow blocks and masonry bricks.
CH206946A
(en )
1939-09-15
Method and device for the production of large artificial silk strands.
AT140710B
(en )
1935-02-25
Method and device for the production of cam sleepers.
AT170908B
(en )
1952-04-10
Device for the production of artificial stone hollow bodies
AT159958B
(en )
1940-12-27
Method and device for the production of hollow rubber bodies.
CH145390A
(en )
1931-02-28
Process and furnace system for the production of molten cement.
CH152812A
(en )
1932-02-29
Method and device for the production of cement.
CH218870A
(en )
1942-01-15
Method and device for the production of fine hollow fibers.
CH182661A
(en )
1936-02-29
Method and device for the production of glass vessels.
AT144751B
(en )
1936-02-25
Method of making roads.
AT140652B
(en )
1935-02-25
Method and device for the production of pipes reinforced in places from fiber cement.
CH189396A
(en )
1937-02-28
Method and device for the fermentation of solutions.
AT148694B
(en )
1937-02-25
Process for the production of compressed yeast.
CH175347A
(en )
1935-02-28
Process for the preparation of methyl 2-keto-1-gulonate.
CH189506A
(en )
1937-02-28
Method of making plaster bandages.
CH150236A
(en )
1931-10-31
Method and device for the production of artificial slate panels.
CH167511A
(en )
1934-02-28
Process for the production of 3-methylalpentane.
AT141095B
(en )
1935-03-25
Process for the remote transmission of optical and acoustic phenomena.