CH49731A
(en )
1911-03-16
Process for the production of shaped pieces for building purposes
CH51815A
(en )
1911-09-16
Process for the manufacture of shaped articles
CH49534A
(en )
1911-02-16
Process for the production of porous building blocks
CH53335A
(en )
1912-02-01
Process for the production of hydroquinine
CH55514A
(en )
1912-08-16
Process for the production of vitreous bodies
CH56522A
(en )
1912-11-01
Process for the production of artificial building blocks
AT54035B
(en )
1912-06-25
Process for the production of strips of fastening pins.
CH48045A
(en )
1910-09-01
Process for the production of hollow ceilings
CH51322A
(en )
1911-08-16
Process for the production of casings for precious stones
CH55315A
(en )
1912-08-01
Process for the production of road surfaces
CH53033A
(en )
1912-01-16
Process for the production of engobed machine bricks
CH51290A
(en )
1911-08-16
Process for the production of low-smoke gunpowder
CH52115A
(en )
1911-11-01
Process for the production of celluloid-like masses
CH57546A
(en )
1913-01-16
Process for the production of size
CH51422A
(en )
1911-09-01
Process for the production of over-spun buttons
CH51114A
(en )
1911-08-01
Process for the production of calcium nitrite
CH46055A
(en )
1910-01-17
Process for the production of collecting walls for photos
CH61633A
(en )
1913-10-01
Process for the production of ceiling formwork
CH48460A
(en )
1910-10-17
Process for the production of decorative seams
CH52279A
(en )
1911-11-01
Process for the production of tannin extracts
CH63494A
(en )
1914-02-02
Process for the production of components
CH52190A
(en )
1911-11-01
Process for the production of oxygen baths
CH52509A
(en )
Process for the production of oxygen baths
CH54092A
(en )
1912-05-01
process for the manufacture of fire starters
CH49081A
(en )
1911-01-02
Process for the production of reinforced concrete floors