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 filed by Bell Punch & Printing Co LtdfiledCriticalBell Punch & Printing Co Ltd
Application grantedgrantedCritical
Publication of DK46453CpublicationCriticalpatent/DK46453C/da