| Patents for Herbert L. Johnston |
Patents 31 -
45
of 56
      |
| Number | Date | Patentee | Title | Type |
| 1,849,094 | Mar. 15, 1932 | H.L. Johnston | Mixing machine | |
| 1,851,583 | Mar. 29, 1932 | H.L. Johnston | Food handling apparatus | |
| 1,851,584 | Mar. 29, 1932 | H.L. Johnston | Food handling apparatus | |
| 1,878,149 | Sep. 20, 1932 | H.L. Johnston | Mixing machine | |
| 1,902,506 | Mar. 21, 1933 | H.L. Johnston, D.A. Meeker | Food handling apparatus | |
| 1,944,181 | Jan. 23, 1934 | H.L. Johnston | Food handling apparatus | |
| 1,977,067 | Oct. 16, 1934 | H.L. Johnston | Slicing machine | |
| 1,980,064 | Nov. 06, 1934 | H.L. Johnston | Washing machine | |
| 1,980,065 | Nov. 06, 1934 | H.L. Johnston | Washing machine | |
| 1,989,138 | Jan. 29, 1935 | H.L. Johnston | Food handling apparatus | |
| 2,005,374 | Jun. 18, 1935 | J.C. Slager, H.L. Johnston | Food handling apparatus | |
| 2,012,167 | Aug. 20, 1935 | H.L. Johnston | Meat chopper | butcher |
| 2,013,387 | Sep. 03, 1935 | H.L. Johnston | Washing machine | |
| 2,024,292 | Dec. 17, 1935 | H.L. Johnston | Food handling apparatus | |
| 2,047,476 | Jul. 14, 1936 | H.L. Johnston | Food handling apparatus | |
