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| All Patents in class 37/259 | |||||
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| Number | Date | Patentee | Title | Type | |
| 450,487 | Apr. 14, 1891 | J.W. Haughawout | Rotary Snow Plow | railroad snow plows | |
| 2,083,996 | Jun. 15, 1937 | T.G. Jonn | Centrifugal fan | vacuum cleaners | |
| 4,346,526 | Aug. 31, 1982 | J.J. Michel, C.A. Mattson | Snow thrower | ||