| Patents Granted on 1938-12-?? |
Patents 1 -
15
of 41
      |
| Number | Date | Patentee | Title | Type |
| GB-496,591 | Dec. 02, 1938 | I.H. Wright | Improvements relating to means for reversing the movements of hydraulically operated machine tool slides | hydraulic apparatus |
| 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 |
| 2,140,098 | Dec. 13, 1938 | F.A. Weiskoff | Bevel | bevels |
| 2,140,146 | Dec. 13, 1938 | H.E. Tautz | Broach | |
| 2,140,303 | Dec. 13, 1938 | F.R. Swanson | Chuck | |
| 2,140,322 | Dec. 13, 1938 | J.H. Lonskey | Woodworking machine | jointers |
| D112,666 | Dec. 20, 1938 | L.L. Schauer | Design for a radial drill | radial drill presses |
