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| Patents for Otis A. Earl | |||||
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| Picture | Number | Date | Patentee | Title | |
 | 614,092 | Nov. 15, 1898 | G.T. Eames | Drill-grinder | |
 | 626,438 | Jun. 06, 1899 | S.F. Nicolai | Wire Splicing Tool | |
 | 633,323 | Sep. 19, 1899 | W.K. Loughborough | Table or Desk Attachment for Chairs or Seats | |
 | 643,703 | Feb. 20, 1900 | H.P. White | Drill-grinding machines | |
 | 684,890 | Oct. 22, 1901 | H.P. White | Drill-grinder | |
| 697,584 | Apr. 15, 1902 | H.P. White | Drill-grinding machine | ||
 | 780,429 | Jan. 17, 1905 | J.E. Kimble | Engine Governor | |
 | 1,201,162 | Oct. 10, 1916 | G.T. Eames | Mandrel-press | |