4. Animal husbandry
  5. Shelter, pen, or other enclosure
  6. Element or attachment

David J. Day

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Bird chain

Animal husbandry – Shelter – pen – or other enclosure – Element or attachment
Patent

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Bird perch ladder

Animal husbandry – Shelter – pen – or other enclosure – Element or attachment
Patent

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Bird perch swing

Animal husbandry – Shelter – pen – or other enclosure – Element or attachment
Patent

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Combined bird perch and chain

Animal husbandry – Shelter – pen – or other enclosure – Element or attachment
Patent

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Key telephone system providing selection of key or PBX operation

Telephonic communications – Multi-line or key substation system with selective switching... – With special service
Patent

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Profile ID: LFUS-PAI-P-73029

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