Charles August Fey was known to be a German immigrant who established his mechanical trade in which region?

The American West

Charles August Fey, who became the central recognized figure in transforming the slot machine into an automated entertainment staple, was a German immigrant who built his career and established his mechanical engineering reputation while operating in the American West, particularly around San Francisco. His expertise stemmed from a deep background in machinery repair and precision engineering, a skillset perfectly suited for solving the complex mechanical puzzles associated with automating coin acceptance and prize dispensing. This environment in the American West was where he conducted his peak inventive activity in the late 1890s, leading directly to inventions like the Liberty Bell.