Tannan Co., Ltd.

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Expired/Abandoned/Withdrawn Patents

Patent # Title Status Filing Date Issue/Pub Date Intl Class
5307662 Roll threading apparatus for threading end blank for metal drum containerExpiredDec 11, 92May 03, 94[B21H]
5174145 Method of and apparatus for manufacturing top plate for metallic drum containerExpiredAug 23, 91Dec 29, 92[B21D]
4819968 Pipe jointExpiredMar 01, 88Apr 11, 89[F16L]

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