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 US07/235,630external-prioritypatent/US4883659A/en
Priority claimed from US07/236,053external-prioritypatent/US5039516A/en
Application filed by Dento Med Ind IncfiledCriticalDento Med Ind Inc
Priority claimed from EP89308488Aexternal-prioritypatent/EP0356196B1/de
Application grantedgrantedCritical
Publication of ATE96305T1publicationCriticalpatent/ATE96305T1/de