| All Patents in class 433/127 |
Patents 1 -
11
of 11
      |
| Number | Date | Patentee | Title | Type |
| 184,210 | Nov. 07, 1876 | W.S. How | Improvement in Tool-Holders | tool holders |
| 282,044 | Jul. 31, 1883 | W.G. Bonwill | Dental or Surgical Engine | dental apparatus |
| 391,304 | Oct. 16, 1888 | D.R. Eden | Apparatus for Filing Teeth | dental apparatus |
| 441,071 | Nov. 18, 1890 | A. Muir | Chuck | drill press chucks |
| 495,267 | Apr. 11, 1893 | C.M. Richmond | Dental Tool Holder | dental apparatus |
| 778,955 | Jan. 03, 1905 | R.M. Dunlevy | Dental Tool Holder | dental tools |
| 816,069 | Mar. 27, 1906 | B.S. Brown | Dental Tool Holder or Clutch | dental tools |
| 868,812 | Oct. 22, 1907 | L. Ruegg | Bit holder | |
| 906,869 | Dec. 15, 1908 | C.B. Gehringer | Dental Tool Holder | dental tools |
| 1,377,288 | May 10, 1921 | A.L. Soresi | Rotary cutting and drilling instrument | handheld power tools |
| 2,215,222 | Sep. 17, 1940 | D.D. Levy | Dental Tool Holder | dental tools |
