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2020-09-09 08:14:04
HAHN, Philipp Matthaus (1739-1770)
Beschreibung einer Rechnungs-Maschine, wodurch man ohne Muhe, durch blosse Herumfuhrung eines Triebels, die vier gewohnlichen Rechnungs-Arten verrichten kann. [In:] Der Teutsche Merkur vom Jahr 1779. Zweites Vierteljahr, p.137-154.
Weimar 1779. .The whole volume: 2 volumes in 1. 287,[1], 287,[1]p. With 2 folding musical scores. Contemp. blue boards. Stamps to title. Foxing. First appearance of the description of the author's famous mechanical calculating machine, the first fully functional popular four-species mechanical calculating machine' The description was already announced by the editor of the Teutsche Merkur', Christoph Martin Wieland, on page 194 of the first part of this volume. [Attributes: Hard Cover]
Bookseller: Antiquariaat Matthys de Jongh [Zutphen, Netherlands]
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