Esterhuyse; Schalk Willem Petrus
Patent Applications and Registrations
Patent applications and USPTO patent grants for Esterhuyse; Schalk Willem Petrus.The latest application filed is for "lip for an excavation bucket".
- Esterhuyse; Schalk Willem Petrus - Pretoria ZA
| Patent | Date |
|---|---|
| Lip for an excavation bucket Grant 6,990,760 - Zaayman , et al. January 31, 2 | 2006-01-31 |
| Lip for an excavation bucket Grant D478,599 - Zaayman , et al. August 19, 2 | 2003-08-19 |
| Ground-engaging tool for an excavation bucket Grant 6,457,269 - Esterhuyse , et al. October 1, 2 | 2002-10-01 |
| Ground-engaging tool for an excavation bucket Grant D458,614 - Esterhuyse , et al. June 11, 2 | 2002-06-11 |
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