U-WA TECH CORPORATION

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Expired/Abandoned/Withdrawn Patents

Patent # Title Status Filing Date Issue/Pub Date Intl Class
5524705 Method for casting oxidization-active metal under oxygen-free conditionsExpiredApr 08, 94Jun 11, 96[B22D]
5513693 Method for casting low specific gravity metal with ultra-fine features using high differential pressureExpiredApr 08, 94May 07, 96[B22D]

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