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Dana Kesslen Keller
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Sarasota, FL, US
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last 30 patents
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Patent Application
AIR RESISTANCE DEVICE
Publication number
20170189749
Publication date
Jul 6, 2017
Halcyon Research, Inc. DBA Harmonica Techs
Dana Kesslen Keller
G10 - MUSICAL INSTRUMENTS ACOUSTICS
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Patent Application
PULMONARY HARMONICA DEVICE AND METHOD OF USING A PULMONARY HARMONIC...
Publication number
20150360079
Publication date
Dec 17, 2015
Halcyon Research, Inc. DBA Harmonica Techs
Dana Kesslen Keller
G10 - MUSICAL INSTRUMENTS ACOUSTICS