Schafft; Hugo Willy
Patent Applications and Registrations
Patent applications and USPTO patent grants for Schafft; Hugo Willy.The latest application filed is for "electro-optic matrix display".
- Schafft; Hugo Willy - Des Plaines IL
| Patent | Date |
|---|---|
| Electro-optic matrix display Grant 4,113,352 - Schafft September 12, 1 | 1978-09-12 |
| High stiffness speaker cone Grant 4,112,168 - Schafft September 5, 1 | 1978-09-05 |
| High power piezoelectric bender Grant 4,060,741 - Schafft November 29, 1 | 1977-11-29 |
| Acoustic transducer with elastomeric coupling Grant 4,047,060 - Schafft September 6, 1 | 1977-09-06 |
| Acoustic Horn Grant 3,852,529 - Schafft December 3, 1 | 1974-12-03 |
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