| All Patents in class 451/249 |
Patents 16 -
20
of 20
      |
| Number | Date | Patentee | Title | Type |
| 2,496,663 | Feb. 07, 1950 | F.A. Fritzsch | Metal Working Apparatus | metal lathe mechanisms |
| 2,683,335 | Jul. 13, 1954 | J.J. Strnad | Base for crankshaft grinder | crankshaft maintenance |
| 2,961,806 | Nov. 29, 1960 | J.J. Strnad | Automatic counterbalance for crankshaft grinders | crankshaft maintenance |
| 3,789,709 | Feb. 05, 1974 | G.A. Kendall, D.E. Roseberry | Orbital crankshaft lathe | crankshaft lathes |
| 4,305,689 | Dec. 15, 1981 | K. Morikawa, S. Yamade | Crankshaft Milling Machine | milling machines |
