4. G - Physics
  5. 10
  6. K

Douglas Andrea

G - Physics – 10 – K

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Inventor

Country: United States Of America

Anr headset with dual stereo jacks

G - Physics – 10 – K
Patent

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Noise cancellation and noise reduction apparatus

G - Physics – 10 – K
Patent

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Noise cancellation apparatus

G - Physics – 10 – K
Patent

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Noise cancellation apparatus

H - Electricity – 04 – M
Patent

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Noise cancellation headset for use with stand or worn on ear

H - Electricity – 04 – R
Patent

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Profile ID: LFCA-PAI-P-1274587

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