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| All Patents in class 33/665 | |||||
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| Number | Date | Patentee | Title | Type | |
| 50,173 | Sep. 26, 1865 | S.A. Shurtleff | Improvement in Dividers | dividers | |
| 71,370 | Nov. 26, 1867 | E.S. Fisher | Combination Center Punch and Dividers | calipers | |
| 762,553 | Jun. 14, 1904 | P.S. Palmer | Combination Calipers and Dividers | dividers | |
| 804,571 | Nov. 14, 1905 | H. Amendt | Dividers | dividers | |
| 936,135 | Oct. 05, 1909 | J.M. King | Dividers | ||
| 1,434,900 | Nov. 07, 1922 | F. Lavimodière | Dividers with Center Punch | dividers | |