John Tweedie

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Harrold, GB

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Patents Grantslast 30 patents

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Apparatus for installing a flexible cured in place lateral seal in...
- Patent number 6,520,719
- Issue date Feb 18, 2003
- Insituform (Netherlands) B.V.
- John Tweedie
- B29 - WORKING OF PLASTICS WORKING OF SUBSTANCES IN A PLASTIC STATE, IN GENERAL