| Patents for Robert L. Henry |
Patents 1 -
8
of 8
      |
| Number | Date | Patentee | Title | Type |
| 2,790,280 | Apr. 30, 1957 | R.L. Henry, J.W. Wilson | Spindle Positioning Mechanism | grinding machines |
| 2,868,993 | Jan. 13, 1959 | R.L. Henry | Apparatus for Reproducing a Pattern Outline | profiling machines |
| 2,902,904 | Sep. 08, 1959 | R.L. Henry, J.A. Rave, Jr. | Control System for Machine Tools | machine tool controls |
| 3,019,343 | Jan. 30, 1962 | R.L. Henry | Universal Line Trcer | profiling machines |
| 3,183,397 | May 11, 1965 | R.L. Henry | Motor Control Apparatus | motor controls |
| 3,206,639 | Sep. 14, 1965 | R.L. Henry | Electrical Discharge Machining Apparatus | electrical discharge machining |
| 3,286,127 | Nov. 15, 1966 | R.L. Henry | Electric Discharge Machining Apparatus with Current Control Means | electrical discharge machining |
| 3,463,896 | Aug. 26, 1969 | R.L. Henry | Electro-Discharge Machining Apparatus | electrical discharge machining |
