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| Patents for Isaiah Knowles Jr. | |||||
| Picture | Number | Date | Patentee | Title | |
![]() | 75,811 | Mar. 24, 1868 | J.A. Talpey | Improvement in rotary pumps | |
![]() | 75,814 | Mar. 24, 1868 | H. Turner | Improvement in spring-chain | |