| Patents for Frederick G. Krafft |
Patents 1 -
12
of 12
      |
| Number | Date | Patentee | Title | Type |
| 2,457,383 | Dec. 28, 1948 | F.G. Krafft | Apparatus for grinding | grinders |
| 2,723,505 | Nov. 15, 1955 | F.G. Krafft | Method and Apparatus for Surface Finishing | surface grinders |
| 2,921,439 | Jan. 19, 1960 | F.G. Krafft | Pump Control | hydraulic apparatus |
| 2,926,653 | Mar. 01, 1960 | F.G. Krafft | Grinding machines | profile and contour grinders |
| GB-850,425 | Oct. 05, 1960 | W. Ernst, F.G. Krafft | A hydraulic circuit embodying a combined pump and control unit | grinders |
| CA-628,890 | Oct. 10, 1961 | F.G. Krafft, W. Ernst | Pump control | grinders |
| 3,015,212 | Jan. 02, 1962 | W. Ernst, F.G. Krafft | Pump Control | hydraulic apparatus |
| 3,047,987 | Aug. 07, 1962 | F.G. Krafft, W.G. Baldenhofer | Apparatus for Submerged Grinding | metalworking machine mechanisms |
| CA-656,461 | Jan. 22, 1963 | W. Ernst, F.G. Krafft | Control pump | grinders |
| 3,083,535 | Apr. 02, 1963 | F.G. Krafft, W. Ernst | Hydraulic servo system | hydraulic apparatus |
| 3,087,286 | Apr. 30, 1963 | F.G. Krafft | Feeding method and apparatus | grinders |
| DE-1,153,585 | Aug. 29, 1963 | W. Ernst, F.G. Krafft | Regulating hydraulic drives for grinding machines by radial displacement of a ring surrounding the rotor of the pump | grinders |
