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 JP1990046356UpriorityCriticalpatent/JPH0810175Y2/ja
Priority to US07/690,069prioritypatent/US5225801A/en
Publication of JPH045624UpublicationCriticalpatent/JPH045624U/ja
Application grantedgrantedCritical
Publication of JPH0810175Y2publicationCriticalpatent/JPH0810175Y2/ja