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 Gustaf Edwin QwarnstroemfiledCriticalGustaf Edwin Qwarnstroem
Priority to DK291556ApriorityCriticalpatent/DK86188C/en
Application grantedgrantedCritical
Publication of DK86188CpublicationCriticalpatent/DK86188C/en