| Patents Granted on 1925-04-21 |
Patents 1 -
7
of 7
      |
| Number | Date | Patentee | Title | Type |
| 1,534,282 | Apr. 21, 1925 | G.F. Packard | Electric motor | induction motors |
| 1,534,301 | Apr. 21, 1925 | P. Conradson | Grinding Machine | internal grinders |
| 1,534,302 | Apr. 21, 1925 | P. Conradson, K.F. Gallimore, H.E. Kempton | Grinding Machine | internal grinders |
| 1,534,537 | Apr. 21, 1925 | E.S. Miller | Holder for Socket Wrench Sets | wrench set holders |
| 1,534,816 | Apr. 21, 1925 | W.L. Thiedemann | Dental Tool Holder | dental tools |
| 1,535,048 | Apr. 21, 1925 | W.F. Schumer | Chucking Mechanism | |
| 1,535,080 | Apr. 21, 1925 | H.K. Spencer | Means For Controlling Feeding Mechanisms | surface grinders |
