| All Patents in class 451/151 |
Patents 16 -
29
of 29
      |
| Number | Date | Patentee | Title | Type |
| 2,381,572 | Aug. 07, 1945 | H.J. Caldwell | Control mechanism for honing machines | honing machines |
| 2,390,495 | Dec. 11, 1945 | H.J. Caldwell | Control mechanism for honing machines | honing machines |
| 2,397,814 | Apr. 02, 1946 | H.J. Caldwell, S.F. Manning, E.Y. Seborg | Honing machine | honing machines |
| 2,479,622 | Aug. 23, 1949 | A.M. Johnson | Control mechanism for honing machines | honing machines |
| 2,573,368 | Oct. 30, 1951 | E.Y. Seborg | Reciprocatory drive for machine tools | |
| 2,631,414 | Mar. 17, 1953 | A.A. Muehling | Honing tool with gauge | |
| 2,667,016 | Jan. 26, 1954 | E.Y. Seborg | Control mechanism for honing machines | honing machines |
| 2,757,488 | Aug. 07, 1956 | D.K. Greenberg | Multiple spindle honing machine | honing machines |
| 2,777,257 | Jan. 15, 1957 | A.M. Johnson | Hone with pressure actuated gage | honing machines |
| 2,780,893 | Feb. 12, 1957 | E.Y. Seborg, D.K. Greenberg | Honing machine | honing machines |
| 2,781,616 | Feb. 19, 1957 | M.R. Estabrook | Honing machine | honing machines |
| 2,923,101 | Feb. 02, 1960 | A.M. Johnson | Pneumatic expander for honing machines | honing machines |
| 3,543,445 | Dec. 01, 1970 | J.R. Southland, E. Borchert, III | Apparatus for grinding drills | drill grinders |
| 3,736,703 | Jun. 05, 1973 | W.F. Treder, M.R. Estabrook | Mechanism for expanding a honing tool | honing machines |
