| Patents Granted on 1928-02-21 |
Patents 1 -
7
of 7
      |
| Number | Date | Patentee | Title | Type |
| 1,659,558 | Feb. 21, 1928 | A.D. Baker | Water-Level Control for Boilers | feedwater apparatus |
| 1,659,574 | Feb. 21, 1928 | M.B. Lloyd | Machine for producing shapes without template | routing machines |
| 1,659,656 | Feb. 21, 1928 | C.B. Jahnke | Oil Engine Control | oil engines |
| 1,659,915 | Feb. 21, 1928 | A. Hilfiker | Caliper Attachments | measurement gauges |
| 1,659,978 | Feb. 21, 1928 | D.C. Klausmeyer | Telescopic Guard System for Drills | drill press accessories |
| 1,660,071 | Feb. 21, 1928 | E.R. Draver | Window-sash holder | |
| 1,660,137 | Feb. 21, 1928 | A.M. Sosa, A.E. Robinson | Drilling Machine | radial drill presses |
