| Patents for John A. Bommhardt |
Patents 1 -
14
of 14
      |
| Number | Date | Patentee | Title | Type |
| 722,332 | Mar. 10, 1903 | I.E. Stump | Bit-stock | spiral screwdrivers |
| 729,663 | Jun. 02, 1903 | F.L. Ress | Combination Square and Bevel | bevel squares |
| 778,849 | Jan. 03, 1905 | J.R. Ellis | Scraper Plane with the Blade Fastened at the Edges | scraper planes |
| 998,660 | Jul. 25, 1911 | F.J. Vlchek | Compound Tool | combination tools |
| 1,015,461 | Jan. 23, 1912 | F.J. Vlchek | Scraper | |
| 1,061,773 | May 13, 1913 | J. Nahlinger | Driving mechanism for spiral-tool drivers | spiral screwdrivers |
| 1,165,859 | Dec. 28, 1915 | O. Ebert | Hollow Mill | milling machine cutters |
| 1,204,095 | Nov. 07, 1916 | C.J. Wallen | Rachet Wrench | ratchet wrenches |
| 1,226,574 | May 15, 1917 | A.C. Nielsen | Micrometer Gage | micrometers |
| 1,227,533 | May 22, 1917 | O. Ebert | Hollow Mill | milling machine cutters |
| 1,272,339 | Jul. 09, 1918 | G.C. Hunter | Machine for Sharpening Saws | saw sharpening machines |
| 1,293,734 | Feb. 11, 1919 | W.S. DuCharme | Pipe Wrench | pipe wrenches |
| 1,293,735 | Feb. 11, 1919 | W.S. DuCharme | Turret Head Wrench | nut wrenches |
| 1,362,014 | Dec. 14, 1920 | G.C. Lawson | Pipe Wrench | pipe wrenches |
