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 US422966Aexternal-prioritypatent/US3884660A/en
Application filed by Perry Equipment CorpfiledCriticalPerry Equipment Corp
Priority to AT116380ApriorityCriticalpatent/AT376141B/de
Publication of ATA116380ApublicationCriticalpatent/ATA116380A/de
Application grantedgrantedCritical
Publication of AT376141BpublicationCriticalpatent/AT376141B/de