| Patents Granted on 1930-05-20 |
Patents 1 -
11
of 11
      |
| Number | Date | Patentee | Title | Type |
| 1,758,973 | May 20, 1930 | C. Rasmussen | Pipe-threading machine | pipe threading machines |
| 1,759,101 | May 20, 1930 | J.E. Daniels | Adjustable Floating Tool Holder | lathe tool holders and tool posts |
| 1,759,130 | May 20, 1930 | L.G. Merritt | Drier | veneer machines |
| 1,759,186 | May 20, 1930 | J.G. Collins | Spanner wrench | |
| 1,759,254 | May 20, 1930 | R.J. Gits | Multiple Oiler | industrial machine lubrication |
| 1,759,345 | May 20, 1930 | R.T. Chase | Can Opener | can and jar openers |
| 1,759,353 | May 20, 1930 | A. Hormel | Clothes-washing device | |
| 1,759,384 | May 20, 1930 | C.R. Houghton, J.T. Wilkin | Gas-metering system | gas meters |
| 1,759,438 | May 20, 1930 | H.C. Clay | Veneer Cutter Speed Control | industrial machine speed and direction changing mechanisms |
| 1,759,768 | May 20, 1930 | H. Tscherning | Mop head | |
| 1,759,776 | May 20, 1930 | J. Brons | Multicylinder Combustion Motor | oil engines |
