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| Patents for Joseph D. Hobbs | |||||
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| Picture | Number | Date | Patentee | Title | |
 | 167,835 | Sep. 21, 1875 | J.D. Hobbs | Improvement in tire-shrinking machines | |
 | 221,732 | Nov. 18, 1879 | J.D. Hobbs | Improvement in Weather-Board Gages | |
 | 222,354 | Dec. 09, 1879 | J.D. Hobbs | Combined Square and Bevel | |