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| Patents for John Van Nortwick | |||||
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| Number | Date | Patentee | Title | Type | |
| 1,580,351 | Apr. 13, 1926 | J. Van Nortwick | Corn husking and shredding machine | ||
| 1,651,422 | Dec. 06, 1927 | J. Van Nortwick | Corn-harvesting machine | ||
| 1,727,021 | Sep. 03, 1929 | J. Van Nortwick | Conveyer for corn pickers, harvesters, and the like | harvesters | |
| 1,766,348 | Jun. 24, 1930 | J. Van Nortwick | Corn picking and husking machine | ||