4. Static structures (e.g., buildings)
  5. Stepped; e.g., stair
  6. Tread unit on horizontal tread member connected to riser

Karl Backus

Inventor

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Building exterior

Building units and construction elements – Structure – Having curved or vaulted roof
Design Patent

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Glass support member

Static structures (e.g. – buildings) – Stepped; e.g. – stair – Tread unit on horizontal tread member connected to riser
Reexamination Certificate

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Profile ID: LFUS-PAI-P-3055884

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