Stephen N. Smith

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Sacriston, GB

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Patents Grantslast 30 patents

Information Patent Grant
Filter element and method of making a filter element
- Patent number 4,838,905
- Issue date Jun 13, 1989
- Domnick Hunter Filters Limited
- Colin T. Billiet
- B29 - WORKING OF PLASTICS WORKING OF SUBSTANCES IN A PLASTIC STATE, IN GENERAL