| Patents Granted on 1939-02-28 |
Patents 1 -
10
of 10
      |
| Number | Date | Patentee | Title | Type |
| 2,148,573 | Feb. 28, 1939 | C.J. Mulcay | Wrench | wrenches |
| 2,148,765 | Feb. 28, 1939 | A.W. Mall | Mass and form vibrator | |
| 2,148,766 | Feb. 28, 1939 | A.W. Mall | Track grinding machine | |
| 2,148,779 | Feb. 28, 1939 | W.I. Senger | Machine Tool Holder | lathe tool holders and tool posts |
| 2,148,805 | Feb. 28, 1939 | S.A. Cogsdill | Method of Making Oil Hole Drills | metalworking twist drills |
| 2,148,852 | Feb. 28, 1939 | R.H. Bergström | Holder Block for Tool Holders | lathe tool holders and tool posts |
| 2,149,013 | Feb. 28, 1939 | F.A. Fritzsch | Speed Changing Mechanism | metalworking speed changing mechanisms |
| 2,149,038 | Feb. 28, 1939 | D.S. Anthony | Tool Holder | lathe tool holders and tool posts |
| 2,149,229 | Feb. 28, 1939 | E. Reaney | Triangle Cutter Lock | milling machine cutters |
| 2,149,230 | Feb. 28, 1939 | E. Reaney | Compensating Blade Clamp | milling machine cutters |
