| Patents Granted on 1921-08-30 |
Patents 1 -
10
of 10
      |
| Number | Date | Patentee | Title | Type |
| D58,717 | Aug. 30, 1921 | G. Constantino | Cobbler's Tool | cobbler |
| 1,388,865 | Aug. 30, 1921 | A. Kimble | Ventilated pulley | industrial machine pulleys and belt drive mechanisms |
| 1,388,875 | Aug. 30, 1921 | J.F. Mirrielees | Feed mechanism for drilling-machines | drill presses |
| 1,388,876 | Aug. 30, 1921 | J.F. Mirrielees | Belt-drive mechanism for drilling-machines and the like | drill presses |
| 1,388,903 | Aug. 30, 1921 | F.H. Stolp | Tube Making Machine | metal bending machines |
| 1,388,969 | Aug. 30, 1921 | A. Peter | Protected Firing Mechanism for Internal Combustion Engines | ignition apparatus |
| 1,389,028 | Aug. 30, 1921 | A.L. Colburn | Direct Reading Micrometer Caliper | micrometers |
| 1,389,103 | Aug. 30, 1921 | J. Ryan | Hammer | hammers |
| 1,389,381 | Aug. 30, 1921 | F.G. Renton | Taper Gaging Caliper | micrometers |
| 1,389,565 | Aug. 30, 1921 | J. Jensen | Machine element | metal punching machines |
