Betz Entec, Inc.

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Expired/Abandoned/Withdrawn Patents

Patent # Title Status Filing Date Issue/Pub Date Intl Class
4464315 Indexing controller system and method of automatic control of cooling water tower systemsExpiredDec 20, 82Aug 07, 84[B01F]
4460008 Indexing controller apparatus for cooling water tower systemsExpiredDec 23, 82Jul 17, 84[G05D]
4442009 Boiler water treatmentExpiredJun 07, 82Apr 10, 84[C02F]

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