A digest of patents, issued by the United States, from 1790 to January 1, 1839: published by Act of Congress under the superintendence of the Commissioner of Patents
Автор: United States. Patent Office,Ellsworth, Henry Leavitt, 1791-1858, 700 стр., издатель: "Книга по Требованию", ISBN: 978-5-8814-7739-4



5 из 5, 4 голос(-ов).