Number | Name | Date | Kind |
---|---|---|---|
1950834 | Wyss | Mar 1934 | |
2990021 | Johnson et al. | Jun 1961 | |
3016958 | Knapp et al. | Jan 1962 | |
3049184 | Lohrman | Aug 1962 |
Entry |
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"Brady 350 Tine Harrow for Field Cultivator Specifications", Koehring Farm Division, Appleton, Wis. 1977. |
"Wil-Rich Mounted Coil Tooth Harrows", Wil-Rich Inc, Wahpeton, N.D., Sep. 26, 1978. |