Did You Know...
...that after Walter Hunt patented the safety pin in 1849, he sold the rights to it for $400?
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| Number | Title | Issue Date |
| 7168768 | Rubber coated wheel A vehicle wheel includes a central hub region and a rim coaxial with the central hub region. The rim is configured to receive a motor vehicle tire and includes an exposed annular surface visible when the tire is received on the rim. A middle region extends from the ... | 01/30/2007 |
| 7057120 | Shock absorbent roller thumb wheel A shock absorbing roller thumb wheel is disclosed. The shock absorbing thumb wheel includes a central hub that can be secured to an electro-mechanical switch, a rim encircling the central hub, and force dispersion spokes extending from the central hub and connected ... | 06/06/2006 |
