| Patents for Frederick N. Gardner |
Patents 1 -
14
of 14
      |
| Number | Date | Patentee | Title | Type |
| 204,028 | May 21, 1878 | F.N. Gardner, N. Sawyer, J.J. Grant | Improvement in screw-cutting dies | taps and dies |
| 243,770 | Jul. 05, 1881 | J.E. Woodbridge, F.N. Gardner | Holder for Grinding Tools | grinding attachments |
| 256,668 | Apr. 18, 1882 | F.N. Gardner | Cutter Holder for Lathes | lathe tool holders and tool posts |
| 262,878 | Aug. 15, 1882 | J.E. Woodbridge | Metal Turning Tool | lathe tools |
| 349,840 | Sep. 28, 1886 | F.N. Gardner | Drafting Compass | compasses |
| 422,340 | Feb. 25, 1890 | F.N. Gardner | Die for Screw Cutting | tap and die holders |
| 463,331 | Nov. 17, 1891 | F.N. Gardner | Drill Chuck | drill press chucks |
| 467,273 | Jan. 19, 1892 | F.N. Gardner, C.H. Besly | Force-feed lubricator | grease cups |
| 494,471 | Mar. 28, 1893 | F.N. Gardner, C.H. Besly | Grinding or polishing wheel and the art of manufacturing same | |
| 494,472 | Mar. 28, 1893 | F.N. Gardner, C.H. Besly | Grinding or polishing wheel and the art of manufacturing same | |
| 541,349 | Jun. 18, 1895 | F.N. Gardner | Grinding and Polishing Machine | bench or pedestal grinders |
| 781,876 | Feb. 07, 1905 | F.N. Gardner | Abrading-disk | |
| 1,013,760 | Jan. 02, 1912 | F.N. Gardner, F.E. Gardner | Disk grinder | sanding machines |
| 1,189,557 | Jul. 04, 1916 | F.N. Gardner, F.E. Gardner | Grinding-machine | drum sanders |
