Treaties and other international acts series. 4552. Interchange of patent rights and technical information for defense purposes, filing classified patent applications, agreement between United States and Norway, amending agreement of Dec. 5, 1958, and Jan. 6 and 17, 1959, effected by exchange of notes signed Oslo Apr. 25 and Aug. 12, 1960; [entered into force Aug. 12, 1960]

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