TECHNICAL UNIVERSITY OF NOVA SCOTIA

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Expired/Abandoned/Withdrawn Patents

Patent # Title Status Filing Date Issue/Pub Date Intl Class
4836116 Fluidized bed combustion systemExpiredDec 17, 87Jun 06, 89[F23G]
4373305 Arch forming structureExpiredFeb 06, 81Feb 15, 83[E04B, E04C]
4325207 Arch forming assemblyExpiredMay 02, 80Apr 20, 82[E04B, E04C]
4300022 Multi-filar moving coil loudspeakerExpiredJul 09, 79Nov 10, 81[H04R]
4251689 Loudspeaker telephone apparatusExpiredJul 09, 79Feb 17, 81[H04M]

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