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 of CH610706BpublicationCriticalpatent/CH610706B/fr
Application filed by Carl A WirzfiledCriticalCarl A Wirz
Priority to CH254276ApriorityCriticalpatent/CH610706GA3/fr
Priority to US05/742,457prioritypatent/US4092821A/en
Priority to JP51144603Aprioritypatent/JPS5269362A/ja
Publication of CH610706GA3publicationCriticalpatent/CH610706GA3/fr