"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 |
| 5775043 | Underground construction An underground construction has: a circumference wall forming therein a cone shaped space; plural support members located at the circumference of the cone shaped space at vertically the same height; floor construction bodies each having plural bed beams a... | 07/07/1998 |