Holgate; Douglas James
Patent Applications and Registrations
Patent applications and USPTO patent grants for Holgate; Douglas James.The latest application filed is for "broken rail detection".
- Holgate; Douglas James - Chellaston GB
- Holgate, Douglas James - Derbyshire GB
| Patent | Date |
|---|---|
| Broken rail detection Grant 6,779,761 - Holgate August 24, 2 | 2004-08-24 |
| Broken rail detection App 20030038216 - Holgate, Douglas James | 2003-02-27 |
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