FRIELDS MACHINE & FABRICATION, LLC

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Expired/Abandoned/Withdrawn Patents

Patent # Title Status Filing Date Issue/Pub Date Intl Class
6427756 Quick-change mechanism for a tie barExpiredAug 21, 01Aug 06, 02[B25B, B22D]
6286584 Quick-change mechanism for a tie barExpiredMar 26, 99Sep 11, 01[B25B, B22D]

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