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| Number | Title | Issue Date |
| 7125449 | Malleable surface material An improved surface material is particularly suited for non-turf baseball field applications such as the pitcher's mound and base paths. The material generally comprises clay, wax and sand and has a putty-like consistency. Cleats can penetrate the material but are n... | 10/24/2006 |
| 4619484 | Side unloading dump truck The improved assembly includes a truck having a generally horizontal trailer frame supported on rotatable wheels. The upper surface of the frame preferably includes a dished portion adapted to receive the assembly's open-topped, curved container bin, and ... | 10/28/1986 |
| 4453871 | Goods wagon unloading mechanism An unloading mechanism for a goods wagon having a container with a cylindrical bottom and rotatably carried at its ends in bearings on bogies comprises an arcuate guide affixed to the container and extending on the underside around the cylindrical bottom ... | 06/12/1984 |
