| Patents for Fredk. C. Fraentzel |
Patents 1 -
11
of 11
      |
| Number | Date | Patentee | Title | Type |
| 424,927 | Apr. 01, 1890 | S. Hale | Adjustable saw frame | frame saws |
| 441,772 | Dec. 02, 1890 | K. Miller | Plumb-Level | pendulum levels |
| 451,183 | Apr. 28, 1891 | G.F. Hall | Wrench | quick adjust wrenches |
| 669,086 | Mar. 05, 1901 | H.C. Heinrich | Bung-Mallet | mallets |
| 680,484 | Aug. 13, 1901 | J. Gottsman | Apparatus for setting saw teeth | saw sets |
| 846,569 | Mar. 12, 1907 | A.E. Jones | Tracing or Marking Tool | butt gauges |
| 867,556 | Oct. 01, 1907 | R. Campbell | Combination Tool | try squares |
| 868,954 | Oct. 22, 1907 | W.H. Whittemore | Self-Adjusting Gripping Jaw for Pipe Wrenches | pipe wrenches |
| 997,551 | Jul. 11, 1911 | G.F. Hall | Compound Instrument | miter squares |
| D44,305 | Jul. 08, 1913 | G.F. Hall | Design for an Attachment for Rules | rules |
| 1,255,370 | Feb. 05, 1918 | A.W. Wheaton | Self Closing Faucet and Wrench or Handle Therefore | auxiliary wrenches |
