...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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| Application No. | Application Title | Issue Date |
| 20080253541 | FLUID-OPERATED COMMUNICATION SYSTEM A communication system including a fluid-operated calling device mounted in a first location in a building, and a fluid-operated indicator mounted in a second location in a building and in fluid communication with the fluid-operated calling device, wherein actuation of ... | 10/16/2008 |
| 20070071206 | Multi-party conversation analyzer & logger A multi-party conversation analyzer and logger uses a variety of techniques including spectrographic voice analysis, absolute loudness measurements, directional microphones, and telephonic directional separation to determine the number of parties who take part in a conv... | 03/29/2007 |
| 20070064898 | TELEPHONE CONFERENCE SYSTEM A telephone conference system has a voice response board 6 for connecting a plurality of phone lines in a telephone conference, a voice synthesis board 8 for synthesizing voice signals for participants of a telephone conference in a designated one of a plu... | 03/22/2007 |