| All Patents in class 409/175 |
Patents 1 -
15
of 19
      |
| Number | Date | Patentee | Title | Type |
| 110,460 | Dec. 27, 1870 | J.E. Ladd, H.F. Henderson | Gage for Turning Clock Work | clockmaker |
| 143,080 | Sep. 23, 1873 | W.H. Odenatt, J.T. Kichner | Metal Planing Machines | metal planers |
| 1,356,394 | Oct. 19, 1920 | G.E. Norris | Mortising-machine | portable timber mortisers |
| 1,423,511 | Jul. 25, 1922 | J.N. Baker | Routing tool | handheld routers |
| 1,449,083 | Mar. 20, 1923 | P.L. Billingsley | Mortising device | mortising machines |
| 1,621,061 | Mar. 15, 1927 | R.L. Carter | Door-mortising machine | mortising machines |
| 1,642,723 | Sep. 20, 1927 | H. de Wallace | Mortising machine | mortising machines |
| 1,698,827 | Jan. 15, 1929 | M. Skolnik | Mortising machine | mortising machines |
| 1,718,324 | Jun. 25, 1929 | F.W. Wappat | Mortising machine | mortising machines |
| 1,738,227 | Dec. 03, 1929 | R.L. Carter | Mortising machine | mortising machines |
| 1,834,145 | Dec. 01, 1931 | E.L. Connell | Valve seating counterboring tool | |
| 1,884,460 | Oct. 25, 1932 | J.H. Williams | Facing Tool | facing heads |
| RE21,795 | May 06, 1941 | J. Verderber | Machine Tool | metalworking machines |
| 2,377,271 | May 29, 1945 | R. Schümann | Flexible Shaft And Air-Cooled Hand Piece | handheld power tool accessories |
| 2,596,868 | May 13, 1952 | J.A. Richards, Jr. | Routing machine | milling machines |
