Communications: electrical – Condition responsive indicating system – Specific condition
Patent
1995-04-26
1997-07-08
Mullen, Thomas
Communications: electrical
Condition responsive indicating system
Specific condition
340539, 340568, 340571, 340572, 34082536, G08B 2300
Patent
active
056465939
ABSTRACT:
A child proximity detection unit includes two transceivers which communicate messages with one another. Only a properly authorized parent can attend a message to the child unit. However, a properly authorized parent can authorize another parent to adopt a child unit.
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Clarke Ian
Hewlett William E.
Hughes Michael
Hewlett Electronics
Lee Benjamin C.
Mullen Thomas
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