| Patents for Richard Johnstone |
Patents 1 -
10
of 36
      |
| Picture | Number | Date | Patentee | Title |
| | 3,882,305 | May 06, 1975 | R. Johnstone | Diagnostic communication system for computer controlled machine tools |
| | 4,109,309 | Aug. 22, 1978 | L.D. Ostby, R. Johnstone | Method and Apparatus for Remote Display of Analog Signals Occurring in Computer Controlled Machine Tools |
| | FR-2,380,595 | Sep. 08, 1978 | L.D. Ostby, R. Johnstone | Method and Apparatus for Remote Displaying of Analog Signals Appearing in Computer Controlled Machine Tools |
| | 4,120,030 | Oct. 10, 1978 | R. Johnstone | Computer Software Security System |
| | 4,145,816 | Mar. 27, 1979 | R. Johnstone, R.E. Stobbe | Spindle Probe With Orbital Transformer |
| | 4,164,810 | Aug. 21, 1979 | R.B. Clegg, R. Johnstone, C.B. Sipek | Automatic Tool Changer for Machine Tools |
| | 4,172,512 | Oct. 30, 1979 | R. Johnstone, R.B. Clegg | Machine Tool With Common Drive for Worktable and Pallet Shuttle |
| | 4,177,550 | Dec. 11, 1979 | R.B. Clegg, R. Johnstone, C.B. Sipek | Machine Tool With Hollow Structural Steel Members |
| | 4,185,376 | Jan. 29, 1980 | R. Johnstone | Unmanned Machining Center With Tool Checking |
 | CA-1,086,043 | Sep. 23, 1980 | R.B. Clegg, R. Johnstone | Machine tool with common drive for worktable and pallet shuttle |
