PUROFLOW MARINE INDUSTRIES LTD., A DE. CORP.

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Expired/Abandoned/Withdrawn Patents

Patent # Title Status Filing Date Issue/Pub Date Intl Class
4698721 Power line filter for transient and continuous noise suppressionExpiredAug 01, 86Oct 06, 87[H02H]
4616286 Power line filterExpiredDec 12, 84Oct 07, 86[H02H]

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