Winnard; Ronald
Patent Applications and Registrations
Patent applications and USPTO patent grants for Winnard; Ronald.The latest application filed is for "endobronchial tubes".
- Winnard; Ronald - Johannesburg ZA
- Winnard; Ronald - N/A ZA
| Patent | Date |
|---|---|
| Endobronchial tubes Grant 4,248,221 - Winnard February 3, 1 | 1981-02-03 |
| Nonreturn Valves For Medical Uses Grant 3,601,151 - Winnard August 24, 1 | 1971-08-24 |
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