| Patents for T. A. Curtis |
Patents 1 -
15
of 16
      |
| Number | Date | Patentee | Title | Type |
| 77,819 | May 12, 1868 | C. Krebs | Improvement in countersinks | countersinks |
| RE3,007 | Jun. 30, 1868 | E.H. Barney, J. Berry | Improved Skate-Fastener or Key | wrenches |
| 80,770 | Aug. 04, 1868 | J.W. Russell | Lathe Dog | lathe dogs |
| 107,334 | Sep. 13, 1870 | F. Carew | Improved Wire-Cutter | pliers |
| 125,123 | Apr. 02, 1872 | E. Dayton | Improvement in mortising-machines | mortising machines |
| 128,963 | Jul. 16, 1872 | J. King | Improvement in miter-boxes | miter boxes |
| 141,289 | Jul. 29, 1873 | A. Partridge | Improvement in Screw-Wrenches | nut wrenches |
| 145,085 | Dec. 02, 1873 | W.C. Bemis | Wrenches | pipe and nut combination wrenches |
| 167,311 | Aug. 31, 1875 | L.L. Davis | Improvement in Bench-Planes | plane adjustment mechanisms |
| 245,668 | Aug. 16, 1881 | D.D. Smith | Lathe tool | |
| 267,290 | Nov. 07, 1882 | O.D. Warfield | Calipers | calipers |
| 275,860 | Apr. 17, 1883 | E.E. Rose | Bit-brace fastening | brace chucks |
| 287,589 | Oct. 30, 1883 | J. Stevens | Cutting Nippers | nippers |
| 288,375 | Nov. 13, 1883 | S.E. Stacy | Adjustable Gage | measurement gauges |
| 288,624 | Nov. 20, 1883 | L.L. Davis | Spirit Level and Plumb | metallic levels |
