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CONCRETE PRODUCTS COMPANY
CONCRETE PRODUCTS COMPANY. Established in 1939, Concrete Products from the 1942 Dubuque Classified Business Directory to the 1957 Dubuque City Directory was listed 973 Main.
In 1962 through 1968 the company was listed at 425 E. 28th.
The 1970 through 1985 Dubuque City Directory listed Highway 3 and 52 North.
Directory of Dubuque Industries. Prepared by the Dubuque Industrial Bureau, 1967
Chronology '79, Telegraph Herald, p. 7