| Patents Granted on 1975-04-?? |
Patents 1 -
11
of 11
      |
| Number | Date | Patentee | Title | Type |
| 3,874,809 | Apr. 01, 1975 | R.S. Hahn | Apparatus for Machining Surface of Revolution Having Discontinuites | metalworking machine mechanisms |
| 3,874,810 | Apr. 01, 1975 | W.D. Russell | Drill guide | drilling and boring |
| 3,877,146 | Apr. 15, 1975 | C.B. Pittinger | Rotating blade holder | |
| 3,877,149 | Apr. 15, 1975 | M. Masuda | Accuracy Regulating Means for a Linear Micrometer | micrometers |
| 3,877,179 | Apr. 15, 1975 | E. Hammann | Work Locating Device for Grinding Machines | grinding machines |
| 3,877,532 | Apr. 15, 1975 | J.D. Hale | Low Profile Scale | scales and balances |
| 3,878,445 | Apr. 15, 1975 | J.J. Schachte, R. Stobbe, F. Zankl, E.E. Kirkham | A.C. Motor Control Apparatus and Method (CNC Control Circuitry) | machine tool controls |
| 3,878,706 | Apr. 22, 1975 | G.C. Berry, H.E. Keithley | Knockout arrangement for presses | metalworking presses |
| 3,879,096 | Apr. 22, 1975 | L. Blodee | Cabinet systems with tension rods as frame members | |
| GB-1,391,409 | Apr. 23, 1975 | K. Ono | Wrench | chain and strap wrenches |
| 3,879,996 | Apr. 29, 1975 | T.O. Green | Meter Translation Devices for Torque Measuring Wrenches and the Like | torque wrenches |
