| Search Again | Story County, Iowa Inventory Patents |
Story Co. Home Page |
| Name | Patent Title | Patent Number |
City | Year |
|---|---|---|---|---|
| William J. DIEDERICHS | process for treating iron | 01574374 | Ames | 1926 |
| William J. DIEDERICHS | process for treating iron | 01574375 | Ames | 1926 |
| William J. DIEDERICHS | process for treating iron | 01574376 | Ames | 1926 |
| William J. DIEDERICHS | process for treating iron | 01574377 | Ames | 1926 |
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