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 filed by Bay OttofiledCriticalBay Otto
Priority claimed from EP89810540Aexternal-prioritypatent/EP0354176B1/en
Application grantedgrantedCritical
Publication of ATE83215T1publicationCriticalpatent/ATE83215T1/en