Familiar Talks on Science: World-Building and Life; Earth, Air and Water.
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About the author:
The Elisha Gray and Alexander Graham Bell controversy concerns the question of whether Gray and Bell invented the telephone independently. This issue is narrower than the question of who deserves credit for inventing the telephone, for which there are several claimants.At issue are roles of each inventor's lawyers, the filing of patent documents, and allegations of theft.Alexander Graham Bell was a professor of elocution at Boston University and tutor of deaf children while pursuing his own research into a method of telegraphy that could transmit multiple messages over a single wire simultaneously, a so-called "harmonic telegraph".
Excerpt from: https://en.wikipedia.org/wiki/Elisha_Gray_and_Alexander_Bell_telephone_controversy
Details
- Publication Date
- Apr 29, 2016
- Language
- English
- Category
- History
- Copyright
- All Rights Reserved - Standard Copyright License
- Contributors
- By (author): Elisha Gray
Specifications
- Pages
- 162
- Binding
- Perfect Bound
- Interior Color
- Black & White
- Dimensions
- US Trade (6 x 9 in / 152 x 229 mm)