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| All Patents in class 222/630 | |||||
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| Number | Date | Patentee | Title | Type | |
| 1,473,785 | Nov. 13, 1923 | W.W. Gore | Dust Sprayer | sprayers | |
| 1,473,786 | Nov. 13, 1923 | W.W. Gore | Dust Sprayer | sprayers | |
| 1,473,787 | Nov. 13, 1923 | W.W. Gore | Dust Sprayer | sprayers | |
| 4,387,852 | Jun. 14, 1983 | C.A. Mattson, J. Michel, A. Domagalski | Fertilizer spreader | ||
| 4,474,327 | Oct. 02, 1984 | C.A. Mattson, J. Michel, A. Domagalski | Fertilizer spreader | ||