| Patents for William F. Zimmermann |
Patents 16 -
30
of 32
      |
| Number | Date | Patentee | Title | Type |
| 2,161,269 | Jun. 06, 1939 | W.F. Zimmermann | Machine for Slotting Cutter Bodies | milling machines |
| 2,183,362 | Dec. 12, 1939 | G. Davenport, W.F. Zimmermann | Roller Bearing Mounted Work Table | gear making machines |
| 2,183,363 | Dec. 12, 1939 | W.F. Zimmermann | Work Table | gear hobbing machines |
| 2,195,911 | Apr. 02, 1940 | W.F. Zimmermann | Selective Worm Gear Table Drive | gear hobbing machines |
| 2,195,912 | Apr. 02, 1940 | W.F. Zimmermann | Worm Gearing | gear hobbing machines |
| 2,211,309 | Aug. 13, 1940 | W.F. Zimmermann | Power Operated Swivel Carriage for Hobbing Machines | gear hobbing machines |
| 2,227,404 | Dec. 31, 1940 | W.F. Zimmermann | Guard for Horizontal Shafts | gear hobbing machines |
| 2,237,465 | Apr. 08, 1941 | W.F. Zimmermann | Change Gear Retaining Lock | metalworking speed changing mechanisms |
| 2,237,466 | Apr. 08, 1941 | W.F. Zimmermann | Support for Ajustable Change Gear Studs | metalworking speed changing mechanisms |
| 2,254,163 | Aug. 26, 1941 | W.F. Zimmermann | Shaper Crossrail Lubricating System | metal shapers |
| 2,278,757 | Apr. 07, 1942 | W.F. Zimmermann | Shaping Machine | metal shapers |
| D133,317 | Aug. 04, 1942 | W.F. Zimmermann | Shaper | metal shapers |
| 2,330,167 | Sep. 21, 1943 | W.F. Zimmermann | Thermally Insulated Hobbing Machine | gear hobbing machines |
| 2,330,168 | Sep. 21, 1943 | W.F. Zimmermann | Hobbing Machine | gear hobbing machines |
| 2,374,250 | Apr. 24, 1945 | W.F. Zimmermann | Worm Gear Hobbing Machine | gear hobbing machines |
