NOW HEAR THIS The Life of Hugh S Knowles Acoustical Engineer... First Ed HBDJ

Description: NOW HEAR THIS: THE LIFE OF HUGH S KNOWLES ACOUSTICAL ENGINEER & ENTREPRENEUR Susan GoodwillieWashington DC: The Francis Press 1999 This is the story of a man — Hugh S Knowles — who developed a microphone, fundamentally altering the hearing aid industry, and was one of the leading acoustical engineers of the 20th century. [from book flap] This fascinating biography is of an entrepreneur, decades ahead of the Silicon Valley crowd, who invented loudspeakers, microphones and the innards of nearly all hearing aids manufactured up to this day. A truly outstanding man whose business success was motivated by his deep concern for making the world a better place to live, especially for persons with hearing loss. [from back cover] CONDITIONHBDJ/Pages are clean and tight, no markings/highlights. Very good condition! A fascinating volume which captures the driving force for excellence. SHIPPING DETAILS Free shipping...saves you $5.38 in shipping fees!Ships quick We pack with great care, using only quality materials, always with a delivery confirmation number ABOUT US Our hope is to exceed your expectations and create a hassle-free transaction. Always let us know if we can be of further service. All the best to you! Have a moment? It'd be swell if you could visit our eBay store THANKS FOR YOUR CONSIDERATION!

Price: 24.95 USD

Location: Longmont, Colorado

End Time: 2024-10-17T07:00:01.000Z

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