| Patents for F. B. Keefer |
Patents 1 -
10
of 10
      |
| Number | Date | Patentee | Title | Type |
| 495,379 | Apr. 11, 1893 | J.C. Smith | Micrometer Gage | micrometers |
| 560,938 | May 26, 1896 | F.L. Sanders | Wrench | screw adjust wrenches |
| 636,661 | Nov. 07, 1899 | W.J. Guest | Improvements in Spanners, Vises, Pipe-Wrenches and Similar Tools Having Adjustable Jaws | quick adjust wrenches |
| 641,173 | Jan. 09, 1900 | J.P. Wells | Micrometer Calipers | micrometers |
| 704,407 | Jul. 08, 1902 | E.L. Utley | Wrench | wrenches |
| 743,851 | Nov. 10, 1903 | G. Schofield, R.H. Fowler | Road Locomotive | steam road engines |
| 751,866 | Feb. 09, 1904 | J.W. Melvin | Gage | rule attachments |
| 837,809 | Dec. 04, 1906 | J.J. Dixon | Pipe Wrench | pipe wrenches |
| 838,414 | Dec. 11, 1906 | C.A. Hunton | Wrench or Spanner | screw adjust wrenches |
| 867,272 | Oct. 01, 1907 | C.T. Holman | Wrench | quick adjust wrenches |
