Did You Know...
...When G.G. Hubbard learned of his future son-in-law's invention, he called it "only a toy." His daughter was engaged to a young man named Alexander Graham Bell.
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| Number | Title | Issue Date |
| 6250232 | Running gear for a rail vehicle A running gear for a rail vehicle having sprung longitudinal members of plastic, connected to one another by means of a cross-member structure and at their free ends to axle-boxes for rail wheels. In order to obtain optimal stability of the wheelset guida... | 06/26/2001 |
| 5036774 | Long-travel side bearing for an articulated railroad car An articulated railroad car, which includes an articulated connector, rail truck and car body units, has at least one standard short-travel railroad car side bearing which is designed to permit down travel of the car body unit of at least 5/8 inch. In a p... | 08/06/1991 |
| 4924779 | Long-travel side bearing for an articulated railroad car An articulated railroad car, which includes an articulated connector, rail truck and car body units, has at least one standard short-travel railroad car side bearing which is designed to permit down travel of the car body unit of at least 5/8 inch. In a p... | 05/15/1990 |
