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| Patents for Cleveland Stone Co. | |||||
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| Number | Date | Patentee | Title | Type | |
| 555,586 | Mar. 03, 1896 | S.C. Schofield | Frame for grindstones | sharpening machines | |
| 981,810 | Jan. 17, 1911 | D.I. Sterling | Grindstone Attachment | grinding attachments | |
| 1,268,967 | Jun. 11, 1918 | J.W. Hampton | Grinding Machine | ||