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 US06/004,622external-prioritypatent/US4210666A/en
Application filed by Robins Co Inc A HfiledCriticalRobins Co Inc A H
Publication of IT7968770A0publicationCriticalpatent/IT7968770A0/en
Application grantedgrantedCritical
Publication of IT1119931BpublicationCriticalpatent/IT1119931B/en