IDENTIFICATION DEVICES
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United States of America Patent
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N/A
Issued Date -
N/A
app pub date -
May 1, 2015
filing date -
Oct 29, 2007
priority date (Note) -
Abandoned
status (Latency Note)
Importance
Abstract
An identification device includes an ultrasound transmitter unit and an outer housing which receives said transmitter unit, said outer housing including one or more apertures which are sealed by a membrane, said membrane being substantially transparent to ultrasound when compared to the rest of the housing.
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Family
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Cited Art Landscape
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