4. Ships
  5. Building
  6. Canal and ferry boats

Ethan W. Cliffton

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Fixed shutter construction for a split-sphere observatory dome

Ships – Building – Canal and ferry boats
Patent

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Split-sphere observatory dome with a rotating oculus window

Static structures (e.g. – buildings) – Barrier or major section mounted for in situ repositioning;... – Roof movable as entity relative to its substructure
Reexamination Certificate

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Profile ID: LFUS-PAI-P-752308

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