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 JP1635085UpriorityCriticalpatent/JPH0417736Y2/ja
Priority to US06/827,788prioritypatent/US4707007A/en
Priority to CA000501413Aprioritypatent/CA1266070A/en
Publication of JPS61133668UpublicationCriticalpatent/JPS61133668U/ja
Application grantedgrantedCritical
Publication of JPH0417736Y2publicationCriticalpatent/JPH0417736Y2/ja