Ohta; Seizo
Patent Applications and Registrations
Patent applications and USPTO patent grants for Ohta; Seizo.The latest application filed is for "telephone set".
- Ohta; Seizo - Tokyo JP
| Patent | Date |
|---|---|
| Telephone set Grant D345,557 - Akatsu , et al. * March 29, 1 | 1994-03-29 |
| Telephone set Grant D342,252 - Akatsu , et al. December 14, 1 | 1993-12-14 |
| Key telephone set Grant D300,926 - Morikawa , et al. May 2, 1 | 1989-05-02 |
| Key telephone set with speakerphone and visual display panel Grant D298,939 - Morikawa , et al. December 13, 1 | 1988-12-13 |
| Key telephone set with speaker phone Grant D298,938 - Morikawa , et al. December 13, 1 | 1988-12-13 |
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