Nicholas M. da Costa

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Wellhead, GB

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Patents Grantslast 30 patents

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Colored hydrogel objects and their production-containing a water-in...
- Patent number 4,981,487
- Issue date Jan 1, 1991
- Igel International Ltd.
- Nicholas M. da Costa
- B29 - WORKING OF PLASTICS WORKING OF SUBSTANCES IN A PLASTIC STATE, IN GENERAL