"That’s an amazing invention, but who would ever want to use one of them?"
President Rutherford B. Hayes ; Said in 1876, after Alexander Graham Bell demonstrated the telephone to him at the White House
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| Application No. | Application Title | Issue Date |
| 20060220439 | Wheel frame made of compound material A wheel frame made of compound material comprises a wheel frame body formed by a plurality of sub-frames; one side of each sub-frame being protruded with a male joint and another side thereof being formed with an female hole corresponding to the male joint; a lower end ... | 10/05/2006 |