Malcolm R. Barfield

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West Midlands, GB

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Patents Grantslast 30 patents

Information Patent Grant
Method of manufacturing an electrofusion coupler
- Patent number 5,697,143
- Issue date Dec 16, 1997
- Glynwed Plastics Ltd.
- Malcolm R. Barfield
- B29 - WORKING OF PLASTICS WORKING OF SUBSTANCES IN A PLASTIC STATE, IN GENERAL