| Patents Granted on 1930-04-?? |
Patents 1 -
15
of 50
      |
| Number | Date | Patentee | Title | Type |
| 1,752,422 | Apr. 01, 1930 | A.G. Decker | Portable electric tapper | handheld power tool accessories |
| 1,752,425 | Apr. 01, 1930 | A.K. Ersland | Wrench | pliers type wrenches |
| 1,752,430 | Apr. 01, 1930 | C.B. Gartrell | Wrench | screw adjust wrenches |
| 1,752,487 | Apr. 01, 1930 | C.I. Hoag | Sawing machine | circular ripsaws |
| 1,752,512 | Apr. 01, 1930 | W.A. Smith | Combined mop and brush holder | |
| 1,752,533 | Apr. 01, 1930 | F. Maxwell | Cane Mill | sugar cane apparatus |
| 1,752,703 | Apr. 01, 1930 | H.E. Simson | Hand Drill or Screw Driver | screwdriver mechanisms |
| 1,752,843 | Apr. 01, 1930 | P.R. Hahnemann | Clutch | industrial machine clutches |
| 1,753,026 | Apr. 01, 1930 | D. Rosati | Cork extractor | lever cork extractors |
| 1,753,035 | Apr. 01, 1930 | G.E. Weaver, E.W. Kelley | Tire-casing spreader | vehicle wheel maintenance |
| 1,753,085 | Apr. 01, 1930 | J.L. Peterson | Clutch | drill presses |
| 1,753,103 | Apr. 01, 1930 | J.H. Abramson | Recessing tool | chisels |
| FR-678,649 | Apr. 02, 1930 | n. listed | Improvements to Grinding Machines | grinding machines |
| GB-309,413 | Apr. 03, 1930 | n. listed | Improvements in or Relating to Centerless Grinders | grinding machines |
| 1,753,191 | Apr. 08, 1930 | T.B. Armstrong | Combination Rule Gauge | marking gauges |
