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| All Patents in class 73/426 | |||||
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| Picture | Number | Date | Patentee | Title | |
| 362,816 | May 10, 1887 | G.W. Burchard | Scale for Indicating the Butter Value of Milk and Cream | ||
| 439,432 | Oct. 28, 1890 | M.L. Schoch | Spoon | ||