4. Telephonic communications
  5. Emergency or alarm communications
  6. Personal monitoring

David M. Page

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Adaptable personnel supervisory system with automatic fee collec

Telephonic communications – Emergency or alarm communications – Personal monitoring
Patent

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Electronic house arrest monitoring system with automatic fee col

Communications: electrical – Condition responsive indicating system – Specific condition
Patent

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Profile ID: LFUS-PAI-P-175308

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