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 JP1987167170UpriorityCriticalpatent/JPH0170680U/ja
Priority to US07/246,640prioritypatent/US4872364A/en
Priority to DE3832426Aprioritypatent/DE3832426A1/de
Priority to KR2019880017287Uprioritypatent/KR910007070Y1/ko
Publication of JPH0170680UpublicationCriticalpatent/JPH0170680U/ja
