4. Medical and laboratory equipment
  5. Prophylactic article
  6. Ear plug or nose clip

Marc L. Doty

Inventor

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Earplug with integral handle

Medical and laboratory equipment – Prophylactic article – Ear plug or nose clip
Design Patent

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Low sound attenuating hearing protection device with filter...

Electrical audio signal processing systems and devices – Hearing protectors – electrical
Reexamination Certificate

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Profile ID: LFUS-PAI-P-3032039

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