The expiration, August 14, of two of what have heretofore been considered the "controlling " patents of the McKay Sewing ...
Shoe manufacturing was revolutionized by the lasting machine, which was patented on March 20, 1883 by inventor Jan Earnst Matzeliger. Matzeliger was born in 1852 in Paramaribo, Suriname, to a Dutch ...
Scientific American is part of Springer Nature, which owns or has commercial relations with thousands of scientific publications (many of them can be found at www ...
一些您可能无法访问的结果已被隐去。
显示无法访问的结果
反馈