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| All Patents in class 84/186.1 | |||||
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| Number | Date | Patentee | Title | Type | |
| 8,953X | Jul. 07, 1835 | T. Loud | Compensating tubes piano forte | music instrument maker | |
| 9,494X | Mar. 12, 1836 | H. Hartye | Piano forte | music instrument maker | |
| 8,953 | May 18, 1852 | A.G. Bachelder | Saw Set | saw sets | |