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
Priority claimed from NL8500016Aexternal-prioritypatent/NL181717C/xx
Application filed by Theodorus Van Gemert Hendrikus, Jan Willem MengerfiledCriticalTheodorus Van Gemert Hendrikus
Publication of NO863499D0publicationCriticalpatent/NO863499D0/no
Publication of NO863499LpublicationCriticalpatent/NO863499L/no