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| All Patents in class 134/131 | |||||
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| Number | Date | Patentee | Title | Type | |
| 2,095,502 | Oct. 12, 1937 | H.L. Johnston | Cleaning and sterilizing method and apparatus | ||
| 2,818,873 | Jan. 07, 1958 | R.S. Bonzi, C.R. Carlson | Jar Washer | jar washing machines | |