Derek Crutchley

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Warrington, GB

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Patents Grantslast 30 patents

Information Patent Grant
Threaded fastener
- Patent number 6,447,227
- Issue date Sep 10, 2002
- Textron Fastening Systems Limited
- Derek Crutchley
- F16 - ENGINEERING ELEMENTS AND UNITS GENERAL MEASURES FOR PRODUCING AND MAINT...