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Scientific American, Vol. 44, No. 15 (1881) (1881)
leaf 7
close-bottomed cylinder, is and can never form less than a right angle with the hand, so and shifts the eggs automatically at regular intervals, is that if the thermometer continues to rotate the needle or so arranged that on the up stroke the valve lifts above the shown in the annexed engraving.… … time than other locks in lating in the box,and arranged in such a manner as to gradu- use. © 1881 SCIENTIFIC AMERICAN, INCInternet Archive · Public domain (published before 1931). Free to use for anything.
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