Revolving door (English Wikipedia)

Analysis of information sources in references of the Wikipedia article "Revolving door" in English language version.

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brianlucas.ca

espacenet.com

v3.espacenet.com

worldwide.espacenet.com

  • US 387571, "Storm-door structure", issued August 7, 1888 

gov.on.ca

e-laws.gov.on.ca

internationalrevolvingdoors.com

invent.org

mit.edu

sustainability.mit.edu

web.mit.edu

mori.co.jp

  • "About automatic door accident at Roppongi Hills - MORI BUILDING". Archived from the original on 2008-01-26. Retrieved 2009-07-08.

pond5.com

slate.com

snopes.com

web.archive.org

  • Revolving Doors - Sustainability @ MIT Archived 2009-09-06 at the Wayback Machine
  • "About automatic door accident at Roppongi Hills - MORI BUILDING". Archived from the original on 2008-01-26. Retrieved 2009-07-08.
  • "International Revolving Door Company Overview". Archived from the original on November 7, 2007. Retrieved 2006-06-15.
  • "Inventors Hall of Fame". Archived from the original on 2009-08-27.