KABUSHIKI KAISHA NAGAO KOGYO

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Expired/Abandoned/Withdrawn Patents

Patent # Title Status Filing Date Issue/Pub Date Intl Class
5531637 Automatic centrifugal fluidizing barrel processing apparatusExpiredMay 06, 94Jul 02, 96[B24B]
5353879 Door having smoke reducing apparatus associated therewithExpiredAug 25, 93Oct 11, 94[A62C]
5263317 Exhaust gas purifying apparatus for automobile diesel engineExpiredSep 29, 92Nov 23, 93[F01N]
5167813 Apparatus for producing a functionally gradient materialExpiredJul 27, 90Dec 01, 92[B01D]

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