...Daniel Webster invented a "bull plow" to pull out tree stumps. It didn't catch on because it was huge and required four oxen to pull it!
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| Number | Title | Issue Date |
| 6447072 | Oil-bath wheel hub An oil-bath wheel spindle and hub assembly including a heat dissipating oil seal cap with a transparent window for observing the lubricant level and thermal conductive vanes forming a heat sink to transfer heat away from the wheel spindle and hub assembly... | 09/10/2002 |