...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 |
| 7794635 | Process for producing a mattress The present invention relates to process for the manufacturing of mattresses characterized in that a liquid molding substance of the same material as the construction pieces (1, 3, 4, 6) is used in all the joints between the pieces. The process comprises step... | 09/14/2010 |
| 7325267 | Frame mattress The present invention concerns a frame mattress comprising a frame (1) with a spring inlay (3) surrounded by the frame, and a material (2) over the spring inlay, together with a reversible mattress (5), arranged for abutting the material ... | 02/05/2008 |