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| Patents for George G. Sill | |||||
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| Picture | Number | Date | Patentee | Title | |
 | 12,002 | Nov. 28, 1854 | E.K. Root | Improved machine for boring the chambers in the cylinders of fire-arms | |
 | 12,874 | May 15, 1855 | E.K. Root | Slide Lathe | |
 | 41,571 | Feb. 09, 1864 | A.F. Cushman | Improvement in Box Planes or Scrapers | |
 | 106,919 | Aug. 30, 1870 | A.F. Cushman | Improvement in Hollow Augers | |
 | 121,494 | Dec. 05, 1871 | A.F. Cushman | Improvements in Chucks for Metal-Turning Lathes | |
 | 129,349 | Jul. 16, 1872 | E.C. Kellogg | Calipers For Taper Surfaces | |