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 US00374803Aexternal-prioritypatent/US3855086A/en
Priority claimed from US00374805Aexternal-prioritypatent/US3839167A/en
Application filed by Aluminum Co Of AmericafiledCriticalAluminum Co Of America
Publication of YU169974ApublicationCriticalpatent/YU169974A/en