...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 |
| 6033163 | Tool bit holder A cylindrical tool bit holder has a rotatably operable cylindrical cover for access to clip mounted tool chuck and tool bits disposed on the inside of the cover, and an integral clip affixed to the holder body for tool belt mounting of the holder, whereby... | 03/07/2000 |