Source: Afinitas, St. Louis Hawkeye Concrete Technologies founder Hartzell Henry “Hank” Schmidgall, 95, died September 22 at his Mediapolis, Iowa home. He launched the concrete pipe and precast machinery business in 1949, following a World War II tour in the Merchant Marines. One of his most well-known innovations is the Pipemaster, the concept for which originated in 1956 as he…
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