Manholes are placed at intervals in the line of ducts to facilitate the drawing in and jointing of the cables, and surface boxes are placed in the footways for distributing purposes. [Please select]
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I expect he felt spun-chuck, and rested in one of the manholes. [Please select]
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Also, that there was a large rounded mass of wood fixed in front of the three manholes. [Please select]
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--Sewer with Monolithic Invert and Block Arch--Cost of Block Manholes--Cement Pipe Constructed in Place--Pipe Sewer, St. [Please select]
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Collapsible metal forms for manholes and catch basins are made by several firms which make block and pipe molds. [Please select]
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~--The following costs of constructing concrete block manholes for electric conduit at Rye, N. [Please select]
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The arrangement of the blocks, their size and shape and the dimensions of the completed manholes are shown by Fig. [Please select]
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