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Device with precision frequency stabilized audible alarm circuit |
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Systems and methods for self-administering a sound test |
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Systems and methods for optically coupling optoelectronic components of a hazard detection system to determine a smoke condition of an environment |
Daniel Adam Warren, Ian C. Smith, Morakinyo John Aina, Andrew Goldenson, Anurag Gupta |
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| 9898922 |
Systems and methods for coordinating and administering self tests of smart home devices having audible outputs |
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Systems and methods for coordinating and administering self tests of smart home devices having audible outputs |
Daniel Adam Warren, Lawrence F. Heyl, Edwin H. Satterthwaite, Jr., Steven Clark, Andrew Goldenson +4 more |
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