| Patents Granted on 1928-05-01 |
Patents 1 -
6
of 6
      |
| Number | Date | Patentee | Title | Type |
| 1,667,801 | May 01, 1928 | A.L. Christensen, C.E. Hawkes | Combination Tool Holder | lathe tool holders and tool posts |
| 1,667,809 | May 01, 1928 | F.A. Kershaw | Internal Gauge | special purpose gauges |
| 1,668,245 | May 01, 1928 | H.A. McGowan | Crank Case Implement | automotive specialty wrenches |
| 1,668,248 | May 01, 1928 | R.W. Olson | Micrometer Attachment | micrometers |
| 1,668,361 | May 01, 1928 | H.B. Foley | Saw-filing machine | woodworking machine sharpening mechanisms |
| 1,668,512 | May 01, 1928 | A.W. Miller | Device for Dressing Locomotive Wheels | portable turning tools |
