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| All Patents in class 384/240 | |||||
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| Picture | Number | Date | Patentee | Title | |
 | 64,724 | May 14, 1867 | C.R. Tompkins | Improvement in steps for upright shafts | |
| 78,013 | May 19, 1868 | J. Richards | Spindle Bearing | ||
| 86,399 | Feb. 02, 1869 | W.P. Hopkins | Step for Spindles | ||
 | 96,407 | Nov. 02, 1869 | B.F. Dunklee | Improvement in step for vertical spindle | |
 | 147,760 | Feb. 24, 1874 | G. Spire, A.H. Frank | Improvement in spindles | |