CH54802A
(en )
1912-06-17
A method of making a dust-preventing tar macadam
CH50322A
(en )
1911-05-16
Method of manufacturing grooved rail frogs
CH57989A
(en )
1913-02-17
Method of making a paint
CH52064A
(en )
1911-10-16
Process for the production of a pavement using a bitumen
CH63501A
(en )
1914-02-02
Method for producing a roadway
CH53778A
(en )
1912-04-01
Method of making a fertilizer
AT57952B
(en )
1913-02-25
Method for producing a road surface.
CH59101A
(en )
1913-04-16
Process for producing a mortar for space-stable artificial stones
CH67974A
(en )
1915-02-01
Method for producing a pad for trusses
CH64878A
(en )
1914-05-01
Method of making a waterproof mortar
CH62767A
(en )
1913-12-16
process for the production of a plaster composed of artificial stones
CH55452A
(en )
1912-08-16
Method of making bells
CH57975A
(en )
1913-02-17
Method of making a spice
CH48959A
(en )
1910-12-16
Method of making embroidery with spikes
CH58351A
(en )
1913-03-01
Process for the production of artificial building blocks
CH67114A
(en )
1914-11-02
Process for the production of a wood substitute
CH54757A
(en )
1912-06-17
Method for producing a bandage material
CH57308A
(en )
1913-01-02
Process for making a fertilizer
CH62587A
(en )
1913-12-01
Method for producing a synthetic resin
CH41226A
(en )
1908-10-01
Process for the production of a dust-binding sweeping agent
CH66037A
(en )
1914-08-01
process for making a durable nitrobenzenediazonium compound
CH66036A
(en )
1914-09-01
process for making a durable nitrobenzenediazonium compound
CH60709A
(en )
1913-08-01
Process for the production of a substructure for railway tracks
CH59431A
(en )
1913-05-16
Process for making clichés
CH64941A
(en )
1914-05-01
Process for the manufacture of a celluloid substitute