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| All Patents in class 84/452R | |||||
| Picture | Number | Date | Patentee | Title | |
| 72,877 | Dec. 31, 1867 | W.H. May | Improved method of preparing wood for musical instruments | ||
![]() | 685,312 | Oct. 29, 1901 | A. Weed | Shafting-hanger | |