| Patents Granted on 1928-08-?? |
Patents 1 -
15
of 39
      |
| Number | Date | Patentee | Title | Type |
| CA-282,297 | Aug. 07, 1928 | A.A. Criqui | Drying process | |
| CA-282,331 | Aug. 07, 1928 | E.E. Davis | Expansible boring tool | boring heads |
| 1,679,413 | Aug. 07, 1928 | H.R. Isler, L.F. Nenninger, S. Einstein | Cutter Grinder | tool grinders |
| 1,679,457 | Aug. 07, 1928 | J.B. Wiard | Dynamo-electric machine | motor cooling |
| 1,679,506 | Aug. 07, 1928 | A. Storm | Cylinder-renewing machine | cylinder maintenance |
| 1,679,529 | Aug. 07, 1928 | A.M. Johnson | Automatic machine tool | tapping machines |
| 1,679,530 | Aug. 07, 1928 | A.M. Johnson | Automatic drilling or tapping machine | drill presses |
| 1,679,531 | Aug. 07, 1928 | A.M. Johnson | Gang machine tool | multiple spindle drill presses |
| 1,679,541 | Aug. 07, 1928 | F.W. Parker | Shaper | metal shapers |
| 1,679,825 | Aug. 07, 1928 | R.J. Holmgreen, J.H. Holmgreen | Rotary Well Drilling Machine | well drilling machines |
| 1,679,884 | Aug. 07, 1928 | H.T. Thomas | Attachment for drills | handheld power tool accessories |
| 1,679,933 | Aug. 07, 1928 | . | Combination Saw and Square | |
| 1,680,074 | Aug. 07, 1928 | J.J. Van Hamersveld | Taper Turning Attachment for Machine Tools | metal lathe accessories and attachments |
| 1,680,141 | Aug. 07, 1928 | W.T. Emmes | Reversing and braking mechanism for machine tools | metalworking machine mechanisms |
| 1,680,212 | Aug. 07, 1928 | G. Feather | Electrically-driven drilling machine and like machine tool | drill presses |
