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| Patents for John Aldrich Jr. | |||||
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| Picture | Number | Date | Patentee | Title | |
 | 11,625 | Aug. 29, 1854 | C.P. Wardwell | Machine for cutting tenons | |
 | 16,814 | Mar. 10, 1857 | C.P. Wardwell | Circular sawing machine | |
 | 17,536 | Jun. 09, 1857 | C.P. Wardwell | Improvement in cheese-hoops | |