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
Priority claimed from JP10960187Uexternal-prioritypatent/JPS6413765U/ja
Priority claimed from JP1987109602Uexternal-prioritypatent/JPH0316299Y2/ja
Application filed by Junkosha Co LtdfiledCriticalJunkosha Co Ltd
Priority claimed from EP88303715Aexternal-prioritypatent/EP0299595B1/de
Application grantedgrantedCritical
Publication of ATE91058T1publicationCriticalpatent/ATE91058T1/de