| Patents for none listed |
Patents 1636 -
1650
of 3291
      |
| Number | Date | Patentee | Title | Type |
| 2,136,675 | Nov. 15, 1938 | L.A. Danse | Coating Measuring Device | special purpose gauges |
| 2,138,117 | Nov. 29, 1938 | M.W. O'Brien, estate of (deceased), J.J. O'Brien | Belt Tighener | engine lathes |
| 2,138,194 | Nov. 29, 1938 | E.M. Pfauser | Hydraulic Pump | hydraulic pumps |
| 2,138,331 | Nov. 29, 1938 | F.P. Ward | Ratchet Wrench | ratchet wrenches |
| 2,138,332 | Nov. 29, 1938 | C.R. Geisel | Wrench | ratchet wrenches |
| 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 | |
| 2,139,251 | Dec. 06, 1938 | W.F. Aller | Measuring Instrument | measurement gauges |
| 2,140,949 | Dec. 20, 1938 | C.A. Bickel | Apparatus for Turning Complex Workpieces | metal lathe accessories and attachments |
| 2,140,957 | Dec. 20, 1938 | M. Hanna | Milling Attachment | milling machine accessories |
| 2,141,627 | Dec. 27, 1938 | C.C. Street | Gauge or Indicator | test indicators |
| D112,888 | Jan. 10, 1939 | P.A. Sturtevant | Wrench or Similar Article | torque wrenches |
| 2,143,255 | Jan. 10, 1939 | P.A. Abe | Lathe | engine lathes |
| 2,143,258 | Jan. 10, 1939 | C.A. Bickel | Cam Making Machine | cam making machines |
| 2,144,486 | Jan. 17, 1939 | E.M. Erb | Locating Device | milling machine accessories |
