Business Services Industry

The US Patent and Trademark Office

Real Estate Weekly, April 19, 2000 by Lois Weiss

The US Patent and Trademark Office in Washington has an exhibit on the inventions that built skyscrapers. It's on display through the summer. Tall, taller tallest: The inventions that built skyscrapers includes a model of the World Trade Center, plus exhibits on elevators and life safety equipment.

COPYRIGHT 2000 Hagedorn Publication
COPYRIGHT 2008 Gale, Cengage Learning

 

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