CH57918A
(en )
1913-02-01
Process for the production of a waterproof and acid-resistant mortar
CH64160A
(en )
1914-03-16
Process for the production of a waterproof cement
CH58351A
(en )
1913-03-01
Process for the production of artificial building blocks
CH59460A
(en )
1913-05-16
Process for the production of acid-resistant cast steel
CH64878A
(en )
1914-05-01
Method of making a waterproof mortar
CH65058A
(en )
1914-05-16
Process for the production of white enamels
CH62860A
(en )
1913-12-16
Process for the production of white enamels
CH65059A
(en )
1914-05-16
Process for the production of white enamels
CH62859A
(en )
1913-12-16
Process for the production of white enamels
CH62594A
(en )
1913-12-01
Process for the production of white enamels
CH57546A
(en )
1913-01-16
Process for the production of size
CH62767A
(en )
1913-12-16
process for the production of a plaster composed of artificial stones
CH73443A
(en )
1917-03-16
Process for the production of artificial slates
CH56522A
(en )
1912-11-01
Process for the production of artificial building blocks
CH61630A
(en )
1913-10-01
Process for the production of agents against plant pests
CH72623A
(en )
1916-06-16
Process for the production of a baking aid
CH57979A
(en )
1913-02-17
Process for the production of hydrogen
CH57533A
(en )
1913-01-16
Process for the production of hydrogen
CH66008A
(en )
1914-08-01
Process for the production of a mercury preparation for therapeutic purposes
CH55865A
(en )
1912-09-16
Process for the production of rollable plaster bases
CH57701A
(en )
1913-02-01
Process for the production of agents against plant pests
CH73471A
(en )
1917-05-01
Process for the production of tarnished enamels and glazes
CH74594A
(en )
1917-08-01
Process for the production of a filling compound for building purposes and vessels
CH61633A
(en )
1913-10-01
Process for the production of ceiling formwork
CH66860A
(en )
1914-10-16
Process for the production of dihydrocodeine