Joseph Francis (German Wikipedia)

Analysis of information sources in references of the Wikipedia article "Joseph Francis" in German language version.

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espacenet.com

worldwide.espacenet.com

  • Patent US1067A: Life and Anchor Boat. Veröffentlicht am 11. Januar 1839, Erfinder: Jos. Francis.
  • Patent US2018A: Life and other boats. Veröffentlicht am 26. März 1841, Erfinder: Joseph Francis.
  • Patent US3974A: Making Boats and other Vessels of Sheet-Iron or other Metal. Veröffentlicht am 26. März 1845, Erfinder: Joseph Francis.

madehow.com

nbn-resolving.org

si.edu

americanhistory.si.edu

travelthemitten.com

vintagemachinery.org

web.archive.org