| Search Again | Story County, Iowa Inventory Patents |
Story Co. Home Page |
| Name | Patent Title | Patent Number |
City | Year |
|---|---|---|---|---|
| John D. RYDER | measuring apparatus | 02331138 | Ames | 1943 |
| John D. RYDER | measuring system | 02333393 | Ames | 1943 |
| John D. RYDER | measuring and control system | 02402210 | Ames | 1946 |
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