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Priority claimed from BE2/59601Aexternal-prioritypatent/BE892262A/nl
Application filed by Simkens Marcellus Carolus PaulfiledCriticalSimkens Marcellus Carolus Paul
Publication of IT8347767A0publicationCriticalpatent/IT8347767A0/it
Application grantedgrantedCritical
Publication of IT1168771BpublicationCriticalpatent/IT1168771B/it