| All Patents in class 279/51 |
Patents 16 -
30
of 60
      |
| Number | Date | Patentee | Title | Type |
| 563,131 | Jun. 30, 1896 | B.S. Brown | Dental Handpiece | dental apparatus |
| 568,484 | Sep. 29, 1896 | F.G. Kretschmer | Metal Screw Machine | screw machines |
| 605,166 | Jun. 07, 1898 | A.J. Johnson | Lathe Chuck | metal lathe chucks |
| 628,730 | Jul. 11, 1899 | F. Harrington, A. Whitney | Work Holder for Lathe Spindles | metal lathe chucks |
| 670,213 | Mar. 19, 1901 | A. Swasey | Lathe Chuck | metal lathe chucks |
| 685,963 | Nov. 05, 1901 | W.M. Allen | Chuck Operating Mechanism for Lathes | metalworking machine mechanisms |
| 713,319 | Nov. 11, 1902 | C.A. Lundberg | Dental Tool Holder | dental tools |
| 714,896 | Dec. 02, 1902 | B.M. Hanson | Thrust Bearing for Collets | metal lathe chucks |
| 728,458 | May 19, 1903 | B.M. Hanson | Fluid Pressure Operated Chuck | metal lathe chucks |
| 728,572 | May 19, 1903 | B.M. Hanson | Fluid Pressure Operated Chuck | metal lathe chucks |
| 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 |
| 905,518 | Dec. 01, 1908 | B.W. Hanson | Chuck Actuating Device | metal lathe chucks |
| 926,761 | Jul. 06, 1909 | J.G. Oliver | Lathe Chuck | metal lathe chucks |
| 933,923 | Sep. 14, 1909 | W.G. Sanborn | Chuck | drill press chucks |
