Illustrated catalogue and price-list of drawing and tracing papers, sun print papers and equipments, drawing instruments and materials, surveying instruments, accessories, etc. / Kolesch & Company. (1907)
Kolesch & Company · Kolesch & Company · leaf 211
ervoir or tank. For this purpose, it is necessary to know accurately the area of the channel ortube though which the water is passing and the meter to be placed within it. Thenthe volume of water passing per minute is shown in cubical feet by multiplying ordividing (according to area of tube) the… … For description see page 207. f 8285 8290 82928287 8294 ~ ■■■■ KOLESCH <fc CO. £K% NEW YORK. 207 13.00 14.00 14.00 Leveling Rods and Ranging Poles* 8250 Light Philadelphia Rod, with Target, Vernier and Clamp, 6| feetlong, sliding out to 12 feet. Divided into feet and tenths, withvernier reading…
Drawing instruments · Surveying instruments
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