Treaties and other international acts series. 3 Paper, $10.00 a yr. (approximately 150 issues), $6.00 additional for foreign mailing; single copies vary in price. 4332. Interchange of patent rights and technical information for defense purposes, filing classified patent applications, agreement between United States and Netherlands effected by exchange of notes signed The Hague Oct. 8, 1959; [entered into force Oct. 8, 1959].