| Search Again | Story County, Iowa Inventory Patents |
Story Co. Home Page |
| Name | Patent Title | Patent Number |
City | Year |
|---|---|---|---|---|
| Richard C. HALLGREN | external inductive neural stimulator system | 03841305 | Ames | 1974 |
| Richard C. HALLGREN | implantable, non-contacting nerve stimulating transducer | 03841306 | Ames | 1974 |
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