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Naval, Biliran Naval Aircraft Factory TDN Naval Aircraft Factory N3N Canary Naval Aircraft Factory PN Naval Aircraft Factory TS Navalgund Navalmoral de la Mata Naval Aircraft Factory SBN Navalafuente NavalenoTài liệu tham khảo
WikiPedia: Naval Aircraft Factory PN http://www.bluejacket.com/usn-usmc_avi_image_vinta... http://www.history.navy.mil/branches/avchr3.htm http://www.cofe.ru/avia/N/N-31.htm https://web.archive.org/web/20071013194609/http://...