Info

A technician makes notes on a test of a fan in a window at the Underwriters test Lab Northbrook (Chicago) IL.

Filename
USA_SCI_UWRL_09_xs.jpg
Copyright
©Peter Menzel, www.menzelphoto.com
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1024x686 / 284.1KB
Contained in galleries
A technician makes notes on a test of a fan in a window at the Underwriters test Lab Northbrook (Chicago) IL.