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| Patents for David W. Cronk | |||||
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| Number | Date | Patentee | Title | Type | |
| 7,020,943 | Apr. 04, 2006 | D.W. Cronk | Lift Tool | automotive tools | |
| 7,155,802 | Jan. 02, 2007 | D.W. Cronk | Lift Tool | automotive tools | |