Vriesendorp & Gaade (English Wikipedia)

Analysis of information sources in references of the Wikipedia article "Vriesendorp & Gaade" in English language version.

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archive.today

  • "Dutch Patent no. 1", Dutch Patent Register, filed by Dr F. L. Kleyn of the Firm of Vriesendorp & Gaade on June 21st 1912

books.google.com

  • Didericus Gijsbertus van Epen, Nederland's patriciaat, Volume 25, Centraal bureau voor genealogie en heraldick., 1939, visited on july 5th 2010
  • Google Books, Staatsblad van het Koningrijk der Nederlanden, 1823, Algemeene Landsdrukkerij te 'sGravenhage 1824, visited on july 5th 2010

octrooicentrum.nl

en.octrooicentrum.nl

octrooigemachtigde.nl

octrooiraad.nl

paecon.net

tweede-wereldoorlog.org

vriesendorp.com

vriesendorp.nl

  • Ir. C.M.R Davidson, Booklet Archived 2011-07-24 at the Wayback Machine celebrating "One hundred years Octrooibureau Vriesendorp & Gaade", Published by Vriesendorp & Gaade in 1933

web.archive.org