Oldenburg; Dorrance
Patent Applications and Registrations
Patent applications and USPTO patent grants for Oldenburg; Dorrance.The latest application filed is for "auger-type tree cutter".
- Oldenburg; Dorrance - Yorkville IL
- Oldenburg; Dorrance - Peoria IL
| Patent | Date |
|---|---|
| Auger-type tree cutter Grant 4,153,086 - Oldenburg May 8, 1 | 1979-05-08 |
| Shear assembly for tree harvester Grant 3,996,982 - Oldenburg December 14, 1 | 1976-12-14 |
| Dual shear blade assembly Grant 3,946,776 - Oldenburg , et al. March 30, 1 | 1976-03-30 |
| Wheel/track Loader Grant 3,826,388 - Oldenburg , et al. July 30, 1 | 1974-07-30 |
| Pulpwood Harvester Grant 3,797,539 - Moser , et al. March 19, 1 | 1974-03-19 |
| Drive Mechanism For Tree Harvesters Grant 3,669,161 - Gutman , et al. June 13, 1 | 1972-06-13 |
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