4. Static structures (e.g., buildings)
  5. Mechanism operated relatively movable shaft assembly
  6. Longitudinally extensible by flexible drive or hoist

Martin E. Humphries

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Optical imaging device having at least one system diaphragm

Optical: systems and elements – Light control by opaque element or medium movable in or... – With rotating or pivoting element
Reexamination Certificate

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Telescopic variable length device

Static structures (e.g. – buildings) – Mechanism operated relatively movable shaft assembly – Longitudinally extensible by flexible drive or hoist
Patent

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Profile ID: LFUS-PAI-P-1561943

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