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| Patents Granted on 1838-09-08 | |||||
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| Number | Date | Patentee | Title | Type | |
| 909 | Sep. 08, 1838 | J.M. Jorden | Improvement in Fire-Plugs and Hydrants to Prevent the Water From Freezing in Them | auxiliary wrenches | |
| 910 | Sep. 08, 1838 | S. Stimpson | Improved apparatus for the application of electro-magnetism as a motive power | electric motors | |