Sidney A. Beers (German Wikipedia)

Analysis of information sources in references of the Wikipedia article "Sidney A. Beers" in German language version.

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espacenet.com

Patent US20248A: Fastening Railroad-Rails. Veröffentlicht am 18. Mai 1858, Erfinder: S. A. Beers.‌

“The first map of Green Island was made by Sidney A. Beers.” In: Samuel N. Hutchinson: A history of the village of Green Island. Published by The Troy Rectord, 1934, page 11.

Sidney A. Beers: Improved Elastic Railroad. Scientific American, Serie 1, 27. Februar 1858, Band 13, Ausgabe 25, S. 196.