Skruemekanisme (Norwegian Wikipedia)

Analysis of information sources in references of the Wikipedia article "Skruemekanisme" in Norwegian language version.

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archive.org

Bunch, Bryan H.; Hellemans, Alexander (2004). The History of Science and Technology: A Browser's Guide to the Great Discoveries, Inventions, and the People who Made Them, from the Dawn of Time to Today. Houghton Mifflin Harcourt. s. 355. ISBN 9780618221233.

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«United states patent office: Charkes T. M. Valérand de Bange: Breech-loading ordnance (US patentnr 301220)» (PDF). 1884. Besøkt 19. juni 2014.
«United states patent office: Axel Welin: Breech mechanism for guns (US patentnr 497695)» (PDF). 1893. Besøkt 19. juni 2014.