...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 |
| 6072392 | Apparatus and method for monitoring and recording the audible environment of a child, patient, older person or pet left in the care of a third person or persons A remote recording unit, which is worn by a child, monitors the ambient sounds in a day care center (for example) and records selected sound bytes that are played back on a docking unit. The time duration between sound bytes is periodic and re-programmabl... | 06/06/2000 |