Business Details In 1906, Carl J. Seagren, William Kallasch, Stanley White and Harry Leach organized and incorporated the Illinois Hydraulic Stone and Construction Company. Initially the firm manufactured concrete blocks compressed by hydraulic pressure. Concrete blocks were phased out beginning in 1913 when road paving became their primary business. As time progressed, the firm diversified and accelerated their industrial, commercial and institutional building program. Visit Our Website |
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