![]() In the 1950s Friden recognised the potential of electronic logic, perhaps assisted by its location in San Leandro California, an area soon to become better known as Silicon Valley. By the time of World War II Friden was a leading manufacturer of high-end desktop calculators, and by the 1950s Friden had achieved a mechanical tour-de-force with the Model SRW that could automatically extract square roots. The Friden Calculating Machine Company was established in 1934 and his improved mechanical calculator soon became a great success. ![]() Carl Friden was a gifted mecanical engineer, early in his life he worked for the Marchant calculator company but by the 1930s he was working on his own mechanical inventions, including a greatly improved mechanical calculator. ![]()
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