Mastroni; Douglas J.
Patent Applications and Registrations
Patent applications and USPTO patent grants for Mastroni; Douglas J..The latest application filed is for "screwdriver set and kit having variable length interchangeable screwdriver shafts and extensions".
- Mastroni; Douglas J. - Woodbury CT
| Patent | Date |
|---|---|
| Screwdriver set and kit having variable length interchangeable screwdriver shafts and extensions Grant 6,009,779 - Mastroni January 4, 2 | 2000-01-04 |
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