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 Grinswen Henricus Theodorus VafiledCriticalGrinswen Henricus Theodorus Va
Priority to PL9673192UpriorityCriticalpatent/PL54594Y1/en
Publication of PL54594Y1publicationCriticalpatent/PL54594Y1/en