Ahmann; John E.
Patent Applications and Registrations
Patent applications and USPTO patent grants for Ahmann; John E..The latest application filed is for "ballot box".
- Ahmann; John E. - Napa CA
| Patent | Date |
|---|---|
| Ballot box Grant 4,981,259 - Ahmann January 1, 1 | 1991-01-01 |
| Dual voting booth package Grant 4,854,652 - Ahmann August 8, 1 | 1989-08-08 |
| Compact portable voting booth Grant 4,569,564 - Ahmann February 11, 1 | 1986-02-11 |
| Portable voting booth Grant 4,445,731 - Ahmann May 1, 1 | 1984-05-01 |
| Punch frame for data registering device Grant 4,297,566 - Ahmann October 27, 1 | 1981-10-27 |
| Multi-purpose Self-contained Portable Voting Booth Grant 3,806,219 - Ahmann April 23, 1 | 1974-04-23 |
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