CH53033A
(en )
1912-01-16
Process for the production of engobed machine bricks
CH53335A
(en )
1912-02-01
Process for the production of hydroquinine
CH52116A
(en )
1911-11-01
Process for the production of plastic masses
CH52115A
(en )
1911-11-01
Process for the production of celluloid-like masses
CH51815A
(en )
1911-09-16
Process for the manufacture of shaped articles
CH48460A
(en )
1910-10-17
Process for the production of decorative seams
CH54358A
(en )
1912-05-17
Process for the production of melt products
CH57546A
(en )
1913-01-16
Process for the production of size
CH52190A
(en )
1911-11-01
Process for the production of oxygen baths
CH52509A
(en )
Process for the production of oxygen baths
CH50173A
(en )
1911-05-01
Process for the production of artificial stone slabs
CH51068A
(en )
1911-07-17
Process for the production of artificial stone slabs
CH63494A
(en )
1914-02-02
Process for the production of components
CH60351A
(en )
1913-07-01
Process for the production of mold plates
CH49731A
(en )
1911-03-16
Process for the production of shaped pieces for building purposes
FR437281A
(en )
1912-04-17
Process for the production of di- and polyoxybenzene combinations
CH55514A
(en )
1912-08-16
Process for the production of vitreous bodies
CH55315A
(en )
1912-08-01
Process for the production of road surfaces
CH52023A
(en )
1911-10-02
Process for the production of a tannin-silver-protein compound
CH57776A
(en )
1913-02-01
Process for the production of printing forms
CH49081A
(en )
1911-01-02
Process for the production of reinforced concrete floors
CH72251A
(en )
1916-04-17
Process for the production of highly refractory articles
CH51290A
(en )
1911-08-16
Process for the production of low-smoke gunpowder
CH62594A
(en )
1913-12-01
Process for the production of white enamels
CH62859A
(en )
1913-12-16
Process for the production of white enamels