Worthen, William Ezra, 1819-1897, [from old catalog] ed · New York, Appleton · leaf 482
Fig. 1093. ENGINEERING DRAWING. 465 House-services are mostly lead pipes ; the taps on the mains for house-con-nections in New York city are usually 1. Fig. 1094 is a clamp sleeve.Figs. 1095 and 1096 are globe specialsof the Builders Iron Foundry, Providence,
Mechanical drawing
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