an endless belt leaving Its outer surface covered with emery or other suitable polish( g material in connection with feed rollers and guides all arranged so a to effect the desired end.) the purpose described. operating substantially as specified. Back Numbers and Volumes of the Scientific American VOL. VI. la out of print and manot be supplied., 1863-08-08
an endless belt leaving Its outer surface covered with emery or other suitable polish( g material in connection with feed rollers and guides all arranged so a to effect the desired end.) the purpose described. operating substantially as specified. Back Numbers and Volumes of the Scientific American VOL. VI. la out of print and manot be supplied., 1863-08-08
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