PITTSBURGH, Nov. 28, 2025 /PRNewswire/ -- "As an electrical foreman, I found direct burial trenching projects to be too time-consuming and labor-intensive," said an inventor, from Canton, Ill., "so I ...
In the mid 1960s, when building Blue River Dam on its namesake river in the Cascade Mountains east of Eugene, Ore., Lockheed Shipbuilding & Construction Co. chose some rather unusual machines for the ...
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