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
Application filed by Helmuth SchmoockfiledCriticalHelmuth Schmoock
Priority to PH33563ApriorityCriticalpatent/PH24078A/en
Publication of PH24078ApublicationCriticalpatent/PH24078A/en
Priority to US07/837,585prioritypatent/US5223307A/en