LandOfFree - US Patents - Listing for Communications: electrical,Audible indication,Piezoelectric

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Alarm system

Communications: electrical – Audible indication – Piezoelectric

Patent

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Audio label

Communications: electrical – Audible indication – Piezoelectric

Patent

[ 0.00 ] – not rated yet Voters 0 Comments 0

Methods and apparatus to increase sound quality of...

Communications: electrical – Audible indication – Piezoelectric

Reexamination Certificate

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Multi-tone warning sounder

Communications: electrical – Audible indication – Piezoelectric

Reexamination Certificate

[ 0.00 ] – not rated yet Voters 0 Comments 0

Piezoelectric audio chime

Communications: electrical – Audible indication – Piezoelectric

Patent

[ 0.00 ] – not rated yet Voters 0 Comments 0

Piezoelectric buzzer

Communications: electrical – Audible indication – Piezoelectric

Reexamination Certificate

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Piezoelectric horn, particularly for vehicles

Communications: electrical – Audible indication – Piezoelectric

Patent

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Piezoelectric siren driver circuit

Communications: electrical – Audible indication – Piezoelectric

Reexamination Certificate

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Piezoelectric sounder

Communications: electrical – Audible indication – Piezoelectric

Patent

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Piezoelectric transducer having directly mounted electrical comp

Communications: electrical – Audible indication – Piezoelectric

Patent

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Sound generating apparatus

Communications: electrical – Audible indication – Piezoelectric

Patent

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Sound generator: a piezoelectric buzzer on a flexible,...

Communications: electrical – Audible indication – Piezoelectric

Reexamination Certificate

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Warning apparatus

Communications: electrical – Audible indication – Piezoelectric

Patent

[ 0.00 ] – not rated yet Voters 0 Comments 0

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