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 Stock & Co R, Spiralbohrer Werkzeug Und MascfiledCriticalStock & Co R
Application grantedgrantedCritical
Publication of AT82812BpublicationCriticalpatent/AT82812B/de