Stephenson; Earle W.
Patent Applications and Registrations
Patent applications and USPTO patent grants for Stephenson; Earle W..The latest application filed is for "grader blade with casting/insert assembly on leading edge".
- Stephenson; Earle W. - Latrobe PA
| Patent | Date |
|---|---|
| Grader blade with casting/insert assembly on leading edge Grant 4,715,450 - Hallissy , et al. December 29, 1 | 1987-12-29 |
| Casting having wear resistant compacts and method of manufacture Grant 4,608,318 - Makrides , et al. August 26, 1 | 1986-08-26 |
| Furrowing tool Grant 4,216,832 - Stephenson , et al. August 12, 1 | 1980-08-12 |
| Earthworking blade device Grant 3,934,654 - Stephenson , et al. January 27, 1 | 1976-01-27 |
| Earthworking Tool Grant 3,737,199 - Stephenson June 5, 1 | 1973-06-05 |
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