Communications: electrical – Condition responsive indicating system – Specific condition
Reexamination Certificate
2007-03-18
2010-11-23
Lee, Benjamin C (Department: 2612)
Communications: electrical
Condition responsive indicating system
Specific condition
C340S690000
Reexamination Certificate
active
07839290
ABSTRACT:
A safety device which emits sounds that guide rescuers to people trapped in collapsed structures.
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Beach Michael Ellsworth
Boduch Paul A.
Chidakel David Welford
Groves, Jr. William Harris
Eustaquio Cal
Lee Benjamin C
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