| All Patents in class 409/221 |
Patents 31 -
45
of 56
      |
| Number | Date | Patentee | Title | Type |
| 2,389,668 | Nov. 27, 1945 | A.M. Johnson | Indexing Mechanism for Machine Tables | metalworking machine mechanisms |
| 2,407,970 | Sep. 24, 1946 | J.J. Lenert, W.K. Andrew | Work Indexing Mechanism | indexers and dividers |
| 2,442,635 | Jun. 01, 1948 | R.D. Bennett | Spline or gear grinder | gear making machines |
| 2,453,600 | Nov. 09, 1948 | H.R. Soden | Indexing Mechanism | indexers and dividers |
| 2,506,495 | May 02, 1950 | L. Davis, R.E. Flanders | Indexing Mechanism | thread grinders |
| 2,564,613 | Aug. 14, 1951 | W.M. Fairbairn, E.Y. Seborg | Indexing mechanism | |
| 2,594,057 | Apr. 22, 1952 | A.A. Muehling | Universal chuck vice | |
| 2,622,487 | Dec. 23, 1952 | R.A. Schultz | Indexing table | indexers and dividers |
| 2,633,777 | Apr. 07, 1953 | J.H. Hoern | Indexing mechanism for station type machines | vertical boring mills |
| 2,704,391 | Mar. 22, 1955 | E.H. Johnson | Indexing Mechanism | |
| 2,769,349 | Nov. 06, 1956 | O.A. Costello | Disconnectable Worm Gearing | industrial machine gearing |
| 2,787,175 | Apr. 02, 1957 | G.H. Schurger | Rotary Machine Tool Table | rotary tables |
| 2,807,920 | Oct. 01, 1957 | R.E. Househo;der | Tool Holder | metalworking machine tool holders |
| 2,829,566 | Apr. 08, 1958 | E.H. Gecks, H. Hines | Indexing table | milling machines |
| 2,934,978 | May 03, 1960 | M.R. Estabrook | Positioning system for machine tools | |
