| | ||
| Home| FAQ | Search:Advanced|Person|Company| Type|Class | Login | |
| Quick search: | ||
| Patents for Harry Dean Kauffman | |||||
      | |||||
| Number | Date | Patentee | Title | Type | |
| 3,988,560 | Oct. 26, 1976 | H.D. Kauffman, J.R. Witzel, J.E. Losey | Method and Apparatus for Controlling Generation of Machining Pulses in EDM Power Supply | electrical discharge machining | |