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Scientific American, Vol. 40, No. 16 (April 1879) (1879)
leaf 7
ort, which consists of a spring-acted The instrument may be readily adjusted to any length of lock is engaged with either or both of the rings, as shown in drum, on which is wound the cord which supports the cage. step, from 17 to 35 inches, the varying scale on the dial be- Fig. 3. The spring in… … ing from the contact of the the trees in the bending; crouch- THE DUBAND DOUGH SKEADEB. weight with the shade ring. © 1879 SCIENTIFIC AMERICAN, INC.Patents · Iron · Induction · Coils · Currents · Induced currents · Inches · Gregg brick · Dry clay · Scientific American · Inductive effects · Wrought iron · Induced current · North Pole · Sewing machine · Currents thrown
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