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 US06/031,961external-prioritypatent/US4285235A/en
Priority claimed from US06/031,962external-prioritypatent/US4266428A/en
Priority claimed from US06/031,963external-prioritypatent/US4275589A/en
Priority claimed from IN165/DEL/80Aexternal-prioritypatent/IN156268B/en
Application filed by Bandag IncfiledCriticalBandag Inc
Priority to IN646/DEL/83ApriorityCriticalpatent/IN156271B/en
Publication of IN156271BpublicationCriticalpatent/IN156271B/en