...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 |
| 4662769 | Tubular writing pen tip with adjustment means In a tip of a tubular writing pen having a writing tube (2) secured in a forepart a (1) joined to a pen body and an axially movable fluid conductor (3) extending into the writing tube, of the type wherein the projecting length of a writing fluid conductor... | 05/05/1987 |