| Patents Granted on 1938-12-06 |
Patents 1 -
9
of 9
      |
| Number | Date | Patentee | Title | Type |
| 2,138,811 | Dec. 06, 1938 | P.A. Abe | Surface Hardening Lathe Bed | flame hardening machines |
| 2,138,945 | Dec. 06, 1938 | P. Brong, C.L. Stolte | Angle Hand Piece | |
| 2,138,964 | Dec. 06, 1938 | W.F. Groene | Orbital lathe | crank pin lathes |
| 2,139,173 | Dec. 06, 1938 | E.G. Roehm, M. Romaine | Control Circuit for Broaching Machines | broaching machines |
| 2,139,234 | Dec. 06, 1938 | A.M. Johnson | Carriage mounting | |
| 2,139,243 | Dec. 06, 1938 | W.H. Mohr | Try Square | squares |
| 2,139,251 | Dec. 06, 1938 | W.F. Aller | Measuring Instrument | measurement gauges |
| 2,139,615 | Dec. 06, 1938 | E.J. Dillman | Heating Apparatus and Control Means Therefor | temperature controls |
| 2,139,616 | Dec. 06, 1938 | A.K. Foulds | Control Device | flow controls |
