| Search Again | Story County, Iowa Inventory Patents |
Story Co. Home Page |
| Name | Patent Title | Patent Number |
City | Year |
|---|---|---|---|---|
| Otto L. HOFFMANN | plant growth regulants and phytocides | 02556664 | Ames | 1951 |
| Otto L. HOFFMANN | plant growth regulants and phytocides | 02556665 | Ames | 1951 |
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