Beyträge zur Geschichte der Erfindungen
- publisher: P.G. Kummer
- creator: Johann Beckmann
- contributor: University of Lausanne
- mediatype: texts
- years: 1805
- pages: 672
- language: German
- notes: Filmed from the copy at Library of Congress; copy imperfect: v. 3, p. 202-203, and v. 5, p. 342-343 lacking.
- download: pdf file