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 GB147619Aexternal-prioritypatent/GB147963A/en
Application filed by Wilhelm Goert BoonzaierfiledCriticalWilhelm Goert Boonzaier
Application grantedgrantedCritical
Publication of DK30489CpublicationCriticalpatent/DK30489C/da