| Search Again | Story County, Iowa Inventory Patents |
Story Co. Home Page |
| Name | Patent Title | Patent Number |
City | Year |
|---|---|---|---|---|
| Douglas ROYER | Chromium-free indicating device for chloride detection | 08231841 | Gilbert | 2012 |
| Douglas ROYER | Chromium-free indicating device | 08603410 | Gilbert | 2013 |
| Douglas ROYER | Vial and cap for turbidity standard | 10006853 | Gilbert | 2018 |
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