James; Alan David
Patent Applications and Registrations
Patent applications and USPTO patent grants for James; Alan David.The latest application filed is for "valve seat having a frusto-conical shape".
- James; Alan David - Bruntingthorpe Leics GB
| Patent | Date |
|---|---|
| Valve seat having a frusto-conical shape Grant 6,651,958 - James , et al. November 25, 2 | 2003-11-25 |
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