| All Patents in class D15/139 |
Patents 1 -
10
of 15
      |
| Picture | Number | Date | Patentee | Title |
 | 20,192 | May 11, 1858 | W.A. Clark | Method of seating the movable cutter in expansive bits |
 | 124,089 | Feb. 27, 1872 | H.S. Shepardson | Improvement in bits |
 | 155,333 | Sep. 22, 1874 | W.L. Parmelee | Improvement in expansion-bits |
 | D21,850 | Sep. 06, 1892 | J. Roberts | Design for a cutter-head hood for planers |
 | 879,309 | Feb. 18, 1908 | E. Pastore | Expansible bit |
 | 1,004,572 | Oct. 03, 1911 | A.L. Jennings | Auger-bit |
| | 1,461,376 | Jul. 10, 1923 | F.A. Bartlett | Cutting bur |
| | D137,923 | May 16, 1944 | C.L. Beard | Design for a metal cutter |
 | D191,308 | Sep. 12, 1961 | E.M. Key | Splitter knife |
| | 3,021,733 | Feb. 20, 1962 | S.A. Cogsdill | Cutting Tool |
