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Displaying results 1 of 7 - 7
Date Innovation City State Country Society
1947 Maine Turnpike ME USA ASCE
1928 Bailey Island Bridge Harpswell ME USA ASCE
1910 Lombard Steam Log Hauler Patten ME USA ASME
1807 Portland Observatory Portland ME USA ASCE
1787 Portland Head Light Cape Elizabeth ME USA ASCE
1761 Sewall's Bridge York ME USA ASCE
1931 Waldo-Hancock Suspension Bridge Stockton Springs ME USA ASCE
Displaying results 1 of 7 - 7

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