4. Baths, closets, sinks, and spittoons
  5. Flush closet
  6. Bowl

Leon Rosen

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Dual earplug

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

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Earmuff sound protector

Surgery – Body protecting or restraining devices for patients or infants – Head or face protector
Patent

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Earplug with insertion stem

Acoustics – Anatomic or prosthetic relation – Ear and mouth
Patent

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Emergency service rescue marker

Communications: electrical – Audible indication
Patent

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Flightline rapid oil preservation system

Liquid purification or separation – Structural installation – Closed circulating system
Patent

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Profile ID: LFUS-PAI-P-479220

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