Ayres, Jr.; Walter D.
Patent Applications and Registrations
Patent applications and USPTO patent grants for Ayres, Jr.; Walter D..The latest application filed is for "removable in-line self-cleaning strainer for piping systems".
- Ayres, Jr.; Walter D. - Chicago IL
| Patent | Date |
|---|---|
| Removable in-line self-cleaning strainer for piping systems Grant 4,678,589 - Ayres, Jr. July 7, 1 | 1987-07-07 |
| Control valve with split disc Grant 4,658,857 - Ayres, Jr. April 21, 1 | 1987-04-21 |
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