CH49534A
(en )
1911-02-16
Process for the production of porous building blocks
CH48045A
(en )
1910-09-01
Process for the production of hollow ceilings
AT41185B
(en )
1910-02-25
Process for the production of artificial marble.
CH49382A
(en )
1911-02-01
Process for the production of magnesia cement
CH50462A
(en )
1911-06-01
Process for the production of waterproof building materials
CH50659A
(en )
1911-06-16
Process for the production of structural parts
CH49904A
(en )
1911-04-01
Process for the production of porous barium oxide
CH49731A
(en )
1911-03-16
Process for the production of shaped pieces for building purposes
CH50466A
(en )
1911-06-01
Process for the production of parquet floors
CH49431A
(en )
1911-02-01
Process for the production of asbestos filters
CH43274A
(en )
1909-04-16
Process for the production of building structures
CH50097A
(en )
1911-04-17
Process for the production of alloys
CH56522A
(en )
1912-11-01
Process for the production of artificial building blocks
CH51422A
(en )
1911-09-01
Process for the production of over-spun buttons
CH47074A
(en )
1910-05-16
Process for the production of hollow spherical containers from concrete
CH49756A
(en )
1911-03-16
Process for the production of calcium carbide fittings
CH46940A
(en )
1910-05-02
Process for the production of playground floors
CH52149A
(en )
1911-11-01
Process for the production of bodies that imitate wood or stone cuts
CH44584A
(en )
1909-09-01
Process for the production of insulating pipes
CH45967A
(en )
1910-01-17
Process for the production of tetrabromocatechol bismuth
CH47559A
(en )
1910-07-16
Process for the production of dense coatings
CH52509A
(en )
Process for the production of oxygen baths
CH52190A
(en )
1911-11-01
Process for the production of oxygen baths
CH45595A
(en )
1909-12-01
Process for the manufacture of porous ceramic products
CH58823A
(en )
1913-04-01
Process for the production of metal layers