Legal status (The legal status 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 status listed.)
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 filedfiledCritical
Priority to JP48003258ApriorityCriticalpatent/JPS4991574A/ja
Publication of JPS4991574ApublicationCriticalpatent/JPS4991574A/ja
Priority to DE19742462283prioritypatent/DE2462283B2/de
Priority to CH850776Aprioritypatent/CH617312GA3/xx
Priority to US05/969,577prioritypatent/USRE30588E/en
