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Scientific American, Vol. 80, No. 10 (1899) (1899)
leaf 4
ay, be moved to the desired position upon the crane. into the lower barrel-section. The next up-stroke will and we are indebted to the inventor, M. G. H. Wall, of close the joint-ring valve and open the check-valve, to Cadillac, Michigan, for our photograph and the fore- the desired spot, the load… … plastic state. A PNEUMATIC BAGGAGE HANDLER. pepsia owing to improper mastication. © 1899 SCIENTIFIC AMERICAN, INC.Internet Archive · Public domain (published before 1931). Free to use for anything.
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