Handbook of mechanical and electrical cost data, giving shipping weights, capacities, outputs, and net prices of machines and apparatus, and detailed costs of installation, maintenance, depreciation and operation, together with many principles and data relating to engineering economics (1918)
Gillette, Halbert Powers, 1869-, Dana, Richard Turner, 1876-1928, joint author · New York, McGraw-Hill · leaf 1022
inued until the wallshave reached the required height When the walls of the vault are finished and filled in and aroundthe outside, the wood form for the concrete top shall be placed.The form shall be placed so as to make the center of the manholeopening as nearly as possible over the center line… … ,. ...-..,.- ,.! I* J I 3z3x% T.SSlb.TB 1 r~T S.\, VX
