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Hearing / Microphones / Sound recording / Electret microphone / Telephony / Stethoscope / Sound / Gerhard M. Sessler / Electret / Physics / Electromagnetism / Technology


Sound Waves an agency of the U.S. Department of Commerce Low-Frequency Sound Wave:
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Document Date: 2014-06-16 12:36:54

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File Size: 1,23 MB

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Facility

Johns Hopkins University / /

IndustryTerm

sound travel / acoustic devices / energy / /

Organization

USPTO office of Education and Outreach / the Johns Hopkins University’s Whiting School of Engineering / U.S. Department of Commerce Low-Frequency Sound Wave / /

Person

James West / /

Position

assistant / Johns Hopkins research professor / c e o / scientist / an engineer / /

Technology

dielectric / /

URL

www.uspto.gov/kids / http /

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