h alteration. placed to dry spontaneously or by gentle heat. No Improved ^Gas-pipe Tongs. preservative being required, one of the difficulties Pipe tongs are now universally used, not only for and uncertainties of dry plate photography is left the work of the gas-fitter, but for many purposes in… … tration. ments, Ordnance, War Vessels, Railway Machinery, Electric, Chemical, and Mathematical Apparatus, Wood and Lumber Ma- A is the handle, or lever, BANNISTER'S GAS-PIPE TONGS. chinery, Hydraulics, Oil and Water Pumps, Water Wheels, Etc. with edge to gripe the pipe, Household, Horticultural,…
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