| Patents Granted on 1957-11-__ |
Patents 1 -
15
of 23
      |
| Number | Date | Patentee | Title | Type |
| 2,811,779 | Nov. 05, 1957 | L.H. Chase | Measuring Device | metalworking machine mechanisms |
| 2,811,875 | Nov. 05, 1957 | S.A. Cogsdill | Twist Drill Having Oil Passages Therein and Method of Construction | metalworking twist drills |
| 2,811,885 | Nov. 05, 1957 | C.G. Stecker | Automatic Form Tool Holder for Lathes | lathe tool holders and tool posts |
| 2,811,908 | Nov. 05, 1957 | H. Nerwin | Rangefinder Deflecting System for Photographic Cameras | camera range finders |
| D181,400 | Nov. 12, 1957 | S.M. Babbitt | Precision boring machine | drill presses |
| 2,812,621 | Nov. 12, 1957 | W.J. Blazek, C.R. Barkley, R.C. Evans | Apparatus for automatically forming and finishing grooves in workpieces | sharpening machines |
| 2,812,678 | Nov. 12, 1957 | G.L. Boley | Tool Block Holder | lathe tool holders and tool posts |
| 2,813,280 | Nov. 19, 1957 | L.B. Huffman | Machine tool for drilling and tapping holes | tapping machines |
| 2,813,382 | Nov. 19, 1957 | R.F. Pendergast | Sanding machine having means for preventing belt creeping | sanding machines |
| 2,813,392 | Nov. 19, 1957 | E. Woosey | Machines for Wrapping Flexible Material on Cores | tape winding machines |
| 2,813,444 | Nov. 19, 1957 | C.R. Hatch, Jr. | Adjustment Locking Means for Adjustable Wrenches | screw adjust wrenches |
| 2,813,469 | Nov. 19, 1957 | H. Nerwin | Photographic Camera | cameras |
| 2,813,558 | Nov. 19, 1957 | D.H. Pedersen | Rotatable cutting tool with detachable blade | cutterheads |
| 2,813,597 | Nov. 19, 1957 | M.W. First | Multi-dust collectors | |
| 2,813,762 | Nov. 19, 1957 | P.K. Bridenbaugh | Self Aligning Bearing | industrial machine bearings |
