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Scientific American, Vol. 88, No. 1 (1903) (1903)
leaf 3
ny library, embracing a The effect of the knotter is to increase the speed bill shaft is rotated by a sector cam gear upon the main shaft. In operation, the two thread ends are wide variety of scientific and general information, and of spooling on account of the rapidity with which it timely and… … it does not interfere with © 1903 SCIENTIFIC AMERICAN, INC.Internet Archive · Public domain (published before 1931). Free to use for anything.
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