4. Movable or removable closures
  5. Plural wings radiate from common pivot; i.e., revolving
  6. Wings fold for through passage

Gertjan Otto

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Releasable locking element for wings of a revolving door

Movable or removable closures – Plural wings radiate from common pivot; i.e. – revolving – Wings fold for through passage
Patent

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Revolving door

Movable or removable closures – Plural wings radiate from common pivot; i.e. – revolving
Reexamination Certificate

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Revolving door

Movable or removable closures – Plural wings radiate from common pivot; i.e. – revolving
Reexamination Certificate

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Revolving door

Ventilation – Means combined with door
Reexamination Certificate

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Profile ID: LFUS-PAI-P-1703880

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