| All Patents in class 408/16 |
Patents 16 -
30
of 61
      |
| Number | Date | Patentee | Title | Type |
| 1,323,267 | Dec. 02, 1919 | B.M. Hanson | Precision Boring Machine | vertical boring mills |
| 1,485,805 | Mar. 04, 1924 | H.M. Norris | Compensating Depth Gage | metalworking machine mechanisms |
| 1,486,968 | Mar. 18, 1924 | H.E. Kempton | Precision Device for Boring Machines and the Like | horizontal boring mill attachments |
| 1,660,435 | Feb. 28, 1928 | C.C. Craley | Metal Working Machinery | drill press accessories |
| 1,686,383 | Oct. 02, 1928 | D.C. Klausmeyer | Cam Controlled Twenty-Four Speed Mechanism | metalworking speed changing mechanisms |
| 1,721,129 | Jul. 16, 1929 | G.M. Mehl | Adjusting Means for Threading Dies | tap and die holders |
| 1,778,579 | Oct. 14, 1930 | E.G. Bartel | Brake band drilling attachment | brake maintenance |
| 1,782,284 | Nov. 18, 1930 | M. Betancourt | Bit Gauge with Level | drill depth stops |
| 1,791,072 | Feb. 03, 1931 | R.E. Manley | Brake-band-drilling machine | brake maintenance |
| 1,945,045 | Jan. 30, 1934 | A.M. Johnson | Honing machine | honing machines |
| 2,110,537 | Mar. 08, 1938 | H.E. Tautz | Drill press adjustment | drill presses |
| 2,167,189 | Jul. 25, 1939 | J. Verderber | Machine Tool | metalworking machines |
| 2,333,589 | Nov. 02, 1943 | L.L. Schauer | Drilling machine | portable metal drilling machines |
| 2,339,435 | Jan. 18, 1944 | H.N. Stephan | Machine Tool | horizontal boring mills |
| 2,350,174 | May 30, 1944 | H.N. Stephan, H.M. Lucas | Boring Machine | horizontal boring mills |
