Matches in DBpedia 2014 for { ?s ?p Joseph John O'Connell, 1st, was an electrical engineer and inventor. He worked for the Chicago Telephone Company (which began as the Chicago Bell Telephone, Co. in 1878 ) in the late 19th and early 20th centuries. He had many inventions including the circuit breaker and the coin return. He also created the "invisible wire" which was the first time more than one telephone conversation could occur on the same wire.. }
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- Joseph_John_O'Connell comment "Joseph John O'Connell, 1st, was an electrical engineer and inventor. He worked for the Chicago Telephone Company (which began as the Chicago Bell Telephone, Co. in 1878 ) in the late 19th and early 20th centuries. He had many inventions including the circuit breaker and the coin return. He also created the "invisible wire" which was the first time more than one telephone conversation could occur on the same wire.".