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Scientific American, Vol. 58, No. 1 (January 1888) (1888)

leaf 7

An illustration from Scientific American, Vol. 58, No. 1 (January 1888), 1888, leaf 7
sition shown in Fig. I the mortising tool is at the illegal for the vessels of any foreign power to engage extreme' outer end of the mortise to be formed. The in our coasting trade. Why should it not be speedily made illegal for the mortising machine is then set in motion, the tool ope- Canadian… … FRICTION DRIVING GEAR FOR DYNAMOS. © 1888 SCIENTIFIC AMERICAN, INC.

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