Hands-England Drilling Limited
Patent Applications and Registrations
Patent applications and USPTO patent grants for Hands-England Drilling Limited.The latest application filed is for "pump system for liquid/solid materials with balanced output".
- Hands-England Drilling Limited - Hertfordshire GB2
| Patent | Date |
|---|---|
| Pump system for liquid/solid materials with balanced output Grant 4,490,096 - Box December 25, 1 | 1984-12-25 |
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