DIFCO LABORATORIES, A CORP. OF MI

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Expired/Abandoned/Withdrawn Patents

Patent # Title Status Filing Date Issue/Pub Date Intl Class
5035866 Luminescence reaction test apparatusExpiredFeb 16, 88Jul 30, 91[B01L]
4985631 Luminescence exposure apparatusExpiredFeb 13, 89Jan 15, 91[G01N]
4968625 Centrifrugation vial and cluster trayExpiredMay 09, 89Nov 06, 90[C12M]

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