S.P.A. OFFICINE MACCAFERRI GIA RAFFAELE MACCAFERRI & FIGLI

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Expired/Abandoned/Withdrawn Patents

Patent # Title Status Filing Date Issue/Pub Date Intl Class
4477206 Flexible mattress-like element usable at ballast for immobilizing and protecting underwater pipelinesExpiredSep 09, 81Oct 16, 84[F16L, E02B]
4394924 Process for making gabions provided with inner partitionsExpiredMay 12, 81Jul 26, 83[B65D]

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