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| All Patents in class 30/115 | |||||
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| Number | Date | Patentee | Title | Type | |
| 206,629 | Jul. 30, 1878 | A.E. Smith | Curd Knife | knives and cutters | |
| 969,528 | Sep. 06, 1910 | R.B. Disbrow | Butter Spade | ||
| 1,328,547 | Jan. 20, 1920 | J.E. Shaw | Tool for Cutting Tire Treads | ||