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Patent applications and USPTO patent grants for Dietrich; William J. SR..The latest application filed is for "soil conditioning rotary reel for primary tillage operations".
Patent | Date |
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Soil conditioning rotary reel for secondary tillage operations App 20060081384 - Dietrich; William J. SR. | 2006-04-20 |
Soil conditioning rotary reel for primary tillage operations App 20060081383 - Dietrich; William J. SR. | 2006-04-20 |
Slurry fertilizer applicator App 20050132943 - Dietrich, William J. SR. | 2005-06-23 |
Tillage implement with one point pin angle adjustment App 20020144826 - Gerber, Rickey ;   et al. | 2002-10-10 |
Tillage tooth for use in an implement providing a smooth finish App 20020043383 - Dietrich, William J. SR. | 2002-04-18 |
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