Washington, Feb. 28, United States Government officials today declined to comment on Tokyo reports that United States aircraft manufacturers, while complying with the Governments embargo against the shipment of planes to Japan, had sent technical experts to Japan to aid in the development of the Japenese aircraft industry. The American companies also were reported to have sold patent rights to Japan for modern transport planes hich could be easily converted into speedy bombers, Unofficial quarters poi out here that it would be logical Wer American aircraft experts to go to Japan in connection with plane sales completed before the State Department imposed the "voluntary" embargo against the export of American planes to Japan. American aircraft companies usually send experts to direct assembly of American planes to avoid difficulties which might injure the reputation of the manufacturers, it was pointed out.
United States aviation companies are understood to be ce-operating 100 per cent. with the Government in the embargo against the shipment of planes to Japan. Some quarters believed reports that the companies had sold patents and other rights to Jepan were incorrect—United Press.
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