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Scientific American, Vol. 60, No. 5 (February 1889) (1889)
leaf 8
diaphragm at times the area of the piston, a, and receiving on each the pressure attained to the power applied will be as the bottom of the globe, but in an equal degree to the diaphragms upon the sides of the globe, thus showing square inch of its surface a pressure of five pounds, the area of the… … © 1889 SCIENTIFIC AMERICAN, INCPatents · Contained · Asks · Scientific American · Munn · Centennial Exhibition · American supplement · Trade mark · Hydraulic press · Sheet iron · Express money · Paris exhibition · Sewing machine · Address munn
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