4. Communications: electrical
  5. Condition responsive indicating system
  6. Specific condition

Annie H. Chan

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Personal security device

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

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Selective calling radio display pager having a message recalling

Communications: electrical – Systems – Nonselective paging
Patent

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Traffic light change anticipation system

Communications: electrical – Traffic control indicator – Indication of time remaining before change of phase
Patent

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Vehicle-warning signal light

Communications: electrical – Land vehicle alarms or indicators – External signal light system
Patent

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Profile ID: LFUS-PAI-P-102399

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