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 |
| D631003 | Telescoping valve stem extension | 01/18/2011 |
| D624010 | Tire valve | 09/21/2010 |
| D496627 | Tire valve | 09/28/2004 |
