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.)
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Publication date
Priority claimed from PCT/NL1988/000038external-prioritypatent/WO1990001456A1/en
Priority claimed from DE8904060Uexternal-prioritypatent/DE8904060U1/de
Application filed by Holland Lift BvfiledCriticalHolland Lift Bv
Priority claimed from EP89114506Aexternal-prioritypatent/EP0356761B1/de
Application grantedgrantedCritical
Publication of ATE86226T1publicationCriticalpatent/ATE86226T1/de