| Patents for none listed |
Patents 991 -
1005
of 3327
      |
| Number | Date | Patentee | Title | Type |
| 1,662,638 | Mar. 13, 1928 | G.L. Curle | Slug Sawing Device | |
| 1,663,217 | Mar. 20, 1928 | E.J. Ryan | Camber and Depth Gauge | measurement gauges |
| 1,664,374 | Mar. 27, 1928 | L.G. Daniels | Multiple Spindle Machine | vertical boring mills |
| 1,664,583 | Apr. 03, 1928 | E.O. Wheelock | Snap Gage | special purpose gauges |
| GB-275,671 | Apr. 05, 1928 | n. listed | Improvements in Bearings for Machine Tools | cylindrical grinders |
| CH-125,534 | Apr. 16, 1928 | n. listed | Method and Device for Producing Surfaces on Workpieces Curved According to Cyclic Curves | profile and contour grinders |
| CH-125,546 | Apr. 16, 1928 | n. listed | Transmission Gear | industrial machine gearing |
| 1,666,467 | Apr. 17, 1928 | J.A. Peterson | Pliers | pliers |
| 1,666,484 | Apr. 17, 1928 | C. Bouillon | Clamping Mechanism for Machine Tools | metalworking machine mechanisms |
| 1,667,562 | Apr. 24, 1928 | F. Neubauer | Micrometer | micrometers |
| 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 |
| 1,670,250 | May 15, 1928 | F. Froschhauser | Armor Cutting Tool | pliers |
| 1,670,493 | May 22, 1928 | M.C. Talcott, G.C. Prime, R.S. Clark | Drop Hammer | drop hammers |
