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Application filed by Winter Pattison JosephfiledCriticalWinter Pattison Joseph
Publication of CH16414ApublicationCriticalpatent/CH16414A/fr
CH16414A1898-04-061898-04-06Installation pour le chauffage des asphaltes naturels ou artificiels et pour la fabrication des asphaltes artificiels
CH16414A
(fr)