Reginald Fessenden
Reginald Aubrey Fessenden (October 6, 1866 – July 22, 1932) was a Canadian-born inventor, who did a majority of his work in the United States and also claimed U.S. citizenship through his American-born father. During his life he received hundreds of patents in various fields, most notably ones related to radio and sonar.
Riedel (glass manufacturer)
Josef Riedel the elder was an early adopter of new technology. When Alexander Graham Bell invented the telephone in 1876, the Riedels implemented a private phone line in the forests to improve communication amongst their factories in 1883. When Thomas Alva Edison patented the first electric light bulb in 1881, the Riedels introduced electric light to the Riedel factories in 1883, primarily for safety reasons to limit fire risk. The modern era of lighthouses began at the turn of the 18th century and lighthouse construction boomed. The first Fresnel lens was used in 1823 - its light could be seen from more than 20 miles (32 km) out. In 1883, the Riedel production catalogues introduced moulded optical crystal Fresnel lenses for lighthouses, and speciality glass products began to play a significant role in the Jos. Riedel product mix. These were successfully exported until 1914 when World War I started.