4. Special receptacle or package
  5. Combined or convertible
  6. Packaged assemblage or kit

Willinger Bros. Inc.

Corporate Assignee

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Aerobic aquarium filter chamber

Liquid purification or separation – With gas-liquid surface contact means – With separator
Patent

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Air pump

Machines not elsewhere specified – Pump or compressor – Aquarium type
Patent

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Air stone

Animal husbandry – Feeder or waterer – Bird feeder
Patent

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Anchor for artificial aquarium plant

Jewelry – symbolic insignia – and ornaments – Sculpture – table or wall ornament – Flower or plant holder
Patent

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Aquarium aerating device

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

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