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 JP1990093121UpriorityCriticalpatent/JPH0722067Y2/ja
Priority to US07/655,859prioritypatent/US5211571A/en
Publication of JPH0451778UpublicationCriticalpatent/JPH0451778U/ja
Application grantedgrantedCritical
Publication of JPH0722067Y2publicationCriticalpatent/JPH0722067Y2/ja
