| Patents for Davis Boring Tool Co. |
Patents 1 -
10
of 15
      |
| Picture | Number | Date | Patentee | Title |
 | GB-205,396 | Oct. 18, 1923 | C.C. Koeln | Cutters for boring and like bars |
 | 1,538,174 | May 19, 1925 | E.E. Davis | Holding device |
 | CA-250,547 | Jun. 09, 1925 | C.C. Koeln | Boring tool |
 | 1,613,174 | Jan. 04, 1927 | C.C. Koeln | Device for stoning cutters |
 | 1,619,855 | Mar. 08, 1927 | E.E. Davis | Expansion reamer |
| | CA-276,826 | Jan. 03, 1928 | E.E. Davis | Expansion reamer |
 | 1,674,890 | Jun. 26, 1928 | E.E. Davis | Expansion reamer |
| | CA-282,331 | Aug. 07, 1928 | E.E. Davis | Expansible boring tool |
 | 1,698,394 | Jan. 08, 1929 | E.E. Davis | Boring device |
 | 1,740,986 | Dec. 24, 1929 | J.E. Kilzer | Expansion reamer |
