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Application filed by Ludwig EigenmannfiledCriticalLudwig Eigenmann
Publication of NO842136LpublicationCriticalpatent/NO842136L/no
Publication of NO160866BpublicationCriticalpatent/NO160866B/no
Publication of NO160866CpublicationCriticalpatent/NO160866C/no
Perfezionamento ai metodi e alle apparecchiature per la posa in opera di materiali nastriformi segnaletici, del tipo detto "comprimibile" e relativa apparecchiatura perfezionata.