"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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| Number | Title | Issue Date |
| 7224251 | Magnetic retaining device for machine tool A magnetic retaining device for attaching a work piece to a machine tool includes a magnetic housing having two housing members secured together and having different magnetic poles, and a magnetic core rotatably received in the magnetic housing and having two core m... | 05/29/2007 |