Crisp; David John
Patent Applications and Registrations
Patent applications and USPTO patent grants for Crisp; David John.The latest application filed is for "locking device".
- Crisp; David John - London GB
| Patent | Date |
|---|---|
| Locking device Grant 6,918,620 - Crisp July 19, 2 | 2005-07-19 |
| Pressure actuated locking device Grant 6,908,125 - Crisp June 21, 2 | 2005-06-21 |
| Locking device App 20040222646 - Crisp, David John | 2004-11-11 |
| Pressure actuated locking device Grant 6,749,235 - Crisp June 15, 2 | 2004-06-15 |
| Locking device App 20030116978 - Crisp, David John | 2003-06-26 |
| Applicator device Grant 3,963,357 - Crisp June 15, 1 | 1976-06-15 |
| Manual cigarette rolling machines Grant 3,911,933 - Crisp , et al. October 14, 1 | 1975-10-14 |
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