The practical telephone handbook and guide to the telephonic exchange (1906)
Poole, Joseph · New York, Macmillan Co. · leaf 381
Fig. 347.—Method ofittaching Chimney Brackets Fig. 348.—Corner BracketsScale 2V where nails can be used to fasten them. Each accommodatestwo insulator bolts. Eaves Bracket.—Fig. 349 shows the form of bracket used forcarrying wires over the edges of the roofs of buildings, andshows a spur insulator…
Telephone
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