Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filedfiledCritical
Publication of BE656000ApublicationCriticalpatent/BE656000A/fr
Composition de resine phenol-formaldehyde, procede de sa preparation et procede pour preparer des articles en fibres de bois l'utilisant comme liant