Poitras; Leandre
Patent Applications and Registrations
Patent applications and USPTO patent grants for Poitras; Leandre.The latest application filed is for "baseball pitching practice device".
- Poitras; Leandre - Beauport Quebec CA
| Patent | Date |
|---|---|
| Baseball pitching practice device Grant D311,031 - Poitras October 2, 1 | 1990-10-02 |
| Baseball pitching practice target Grant 4,830,369 - Poitras May 16, 1 | 1989-05-16 |
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