| Patents for Alex. F. Roberts |
Patents 1 -
10
of 24
      |
| Picture | Number | Date | Patentee | Title |
 | 59,241 | Oct. 30, 1866 | K. Loffler | Improved cork-pull |
 | 62,849 | Mar. 12, 1867 | T. Hofstatter | Improvement in Augers |
 | 64,391 | Apr. 30, 1867 | H. Whiting | Improvement in Dividers |
 | 66,174 | Jun. 25, 1867 | E.H. Roe | Hand Saw |
 | 66,177 | Jun. 25, 1867 | J.V. Secor | Wrench |
 | 67,818 | Aug. 13, 1867 | G.C. Taft | Improvement in Wrenches |
 | 70,005 | Oct. 22, 1867 | B.S. Lawson | Improvement in Wrenches |
 | 70,923 | Nov. 12, 1867 | T.D. Vorhees | Improvement in Screw-Drivers |
 | 73,290 | Jan. 14, 1868 | F. Bowly | Improvement in instruments for drawing ellipses |
 | 78,299 | May 26, 1868 | N.F. Loi | Improvement in Pipe-Wrenches |
