The patent on the original sole-sewing machine expired July 6,1879, and that on the revolving horn and some other featur.es August 12, 1879.

This article was originally published with the title “Goodyear & McKay Sole Sewing Machines Boot and Shoe Sewing Machines” in SA Supplements Vol. 12 No. 302supp (October 1881), p. 4811 doi:10. ...