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Patents Granted on 1797-07-?? | |||||
Number | Date | Patentee | Title | Type | |
178X | Jul. 01, 1797 | T. Bruff, Sr. | Improvement in extracting teeth | dental tools | |
180X | Jul. 08, 1797 | B. Jarvis | Making shingles and boards | shingle machines | |
181X | Jul. 11, 1797 | J. Hawkins | Brick Machine | brick maker |