| Patents Granted on 1952-12-30 |
Patents 1 -
15
of 15
      |
| Number | Date | Patentee | Title | Type |
| 2,623,269 | Dec. 30, 1952 | H. Goldschmidt | Convertible material working machine | wood lathes |
| 2,623,271 | Dec. 30, 1952 | H.N. Girardin | Cutoff Tool Holder | lathe tool holders and tool posts |
| 2,623,333 | Dec. 30, 1952 | W.G. Baldenhofer | Apparatus for Grinding | cylindrical grinders |
| 2,623,337 | Dec. 30, 1952 | J.J. Falls | Universally adjustable protractor tool guide | grinding attachments |
| 2,623,413 | Dec. 30, 1952 | R.F. Moore | Machine for Assembling and Trying out Dies | tapping machines |
| 2,623,418 | Dec. 30, 1952 | M.F. Vaughan | Method for making Wrench Sockets | socket wrenches |
| 2,623,419 | Dec. 30, 1952 | G.F. Wales | Precision Drilling Machine | drill presses |
| 2,623,428 | Dec. 30, 1952 | J.V. Larson | Self-Adjusting Pipe Wrench of A Spring-Impelled Trigger Actuator Type | self-adjust wrenches |
| 2,623,429 | Dec. 30, 1952 | H.J. Siekmann, W.R. Meyer | Work Handling Appparatus for Machine Tools | metalworking machine mechanisms |
| 2,623,440 | Dec. 30, 1952 | W. Nipken | Unitary work holder | work holding |
| 2,623,466 | Dec. 30, 1952 | W.H. Tinker | Dual Discharge Pump | rotary pumps |
| 2,623,554 | Dec. 30, 1952 | E. Schutz | Cutter guard for woodworking machines | radial arm saws |
| 2,623,555 | Dec. 30, 1952 | W.A. Eschenburg | Saw guard | woodworking machine safety guards |
| 2,623,560 | Dec. 30, 1952 | A.H. Joseph | Polygonal framework type clamping machine | clamps |
| 2,623,970 | Dec. 30, 1952 | E.P. Bullard | Electrical Switch | |
