| Patents for Charles Herfurth |
Patents 1 -
14
of 14
      |
| Number | Date | Patentee | Title | Type |
| 1,993,840 | Mar. 12, 1935 | C. Herfurth | Grinding Machine | grinding machines |
| 2,006,554 | Jul. 02, 1935 | C. Herfurth | Grinding Machine | grinding machines |
| 2,101,644 | Dec. 07, 1937 | L.F. Nenninger, C. Herfurth, H. Ernst | Grinding Machine | grinding machines |
| 2,142,028 | Dec. 27, 1938 | C. Herfurth | Grinding Machine | grinding machines |
| 2,164,875 | Jul. 04, 1939 | C. Herfurth | Grinding Machine | grinding machines |
| 2,167,948 | Aug. 01, 1939 | K.T. Schledorn, C. Herfurth | Cambering Mechanism for Grinding Machines | grinding machines |
| 2,170,304 | Aug. 22, 1939 | C. Herfurth | Truing Attachment | grinding machines |
| 2,254,010 | Aug. 26, 1941 | R.D. Wortendyke, C. Herfurth | Grinding Machine | grinding machines |
| 2,303,639 | Dec. 01, 1942 | R.D. Wortendyke, C. Herfurth | Grinding Machine | grinding machines |
| 2,333,304 | Nov. 02, 1943 | C. Herfurth, A.H. Dall, H. Ernst | Surface Finishing Machinery | grinding machines |
| 2,393,907 | Jan. 29, 1946 | C. Herfurth | Milling Machine Vibration Dampener | milling machines |
| 3,089,572 | May 14, 1963 | C. Herfurth | Machine Tool System Control Mechanism | milling machines |
| 3,155,007 | Nov. 03, 1964 | C. Herfurth, L.A. Dever | Automatic Machine Tool Control Mechanism | milling machines |
| 3,194,374 | Jul. 13, 1965 | C. Herfurth | Machine Tool Slide Retraction Mechanism | metalworking machine mechanisms |
