David Crosthwait- revolutionized HVAC

from Everyday Black History: Afro Appreciation · host Everyday Black History: Afro A

He revolutionized Heating, Ventilation and Air Conditioning. He also designed the HVAC systems of places such as Radio City Music Hall and Rockefeller Center. Enjoy

Episode metadata supplied by the publisher feed · Published Sep 18, 2018

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David Crosthwait- revolutionized HVAC

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