Edison signed this agreement with Western Union Telegraph Company on 22 March 1877. In return for exclusive U.S. rights to "all his inventions and improvements" for land telegraph lines or cables (except improvements in automatic telegraphy), the company agreed to pay him $150 a week and a royalty for any inventions it used.
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Financing a Laboratory
- Website / File Link: http://edisondigital.rutgers.edu/document/HM770028