| Patents Granted on 1939-05-30 |
Patents 1 -
11
of 11
      |
| Number | Date | Patentee | Title | Type |
| D115,042 | May 30, 1939 | T.L. Hedgpeth | Design for a power-driven hand tool unit | handheld power tools |
| 2,160,110 | May 30, 1939 | F.W. Seybold | Composing room saw | printer |
| 2,160,137 | May 30, 1939 | A.F. Froussard | Safety Mechanism | refrigeration apparatus |
| 2,160,217 | May 30, 1939 | E.J. Kingsbury | Machine tool unit with feeding mechanism | metalworking machine mechanisms |
| 2,160,369 | May 30, 1939 | O.N. Rikof | Tool Holder | lathe tool holders and tool posts |
| 2,160,393 | May 30, 1939 | G.M. Trefts, III | Pressure Vessel of the Boiler Type and Method for Producing Same | stationary boilers |
| 2,160,402 | May 30, 1939 | W.F. Groene | Crankshaft Lathe | metalworking machine mechanisms |
| 2,160,405 | May 30, 1939 | F.R. Mallalieu | Work holder | magnetic chucks |
| 2,160,777 | May 30, 1939 | H. Ernst, A.H. Dall | Journal Bearing | grinding machines |
| 2,160,778 | May 30, 1939 | H. Ernst, A.H. Dall | Bearing | grinding machines |
| 2,160,784 | May 30, 1939 | E.F. Milbank | Lubricating Device | flange lubricators |
