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| Patents Granted on 1800-08-?? | |||||
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| Number | Date | Patentee | Title | Type | |
| 296X | Aug. 04, 1800 | P. Lossing | Improvement in burning lime | manufacturing processes | |
| 297X | Aug. 22, 1800 | H. Butler | Cooking Machine | stoves | |
| 298X | Aug. 23, 1800 | F. Young | Machine for cutting and heading nails | nail making machines | |
| 299X | Aug. 23, 1800 | J. Kilborn | Bark mill | bark processing machines | |
| 300X | Aug. 25, 1800 | G.N. Philips, D. Cooly, Jr. | Improvement in chimneys | chimneys | |