4. Static structures (e.g., buildings)
  5. Mechanism operated relatively movable shaft assembly
  6. Fluid pressure actuated

Russell L. Sterner

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Attachment jib for cranes

Fire escape – ladder – or scaffold – Means maintaining platform level on angularly movable support – Swingable support
Patent

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Attachment jib for cranes

Traversing hoists – Having vertically swinging boom – Having means to swing boom vertically
Patent

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Attachment jib for cranes

Traversing hoists – Having vertically swinging boom – Having means to swing boom vertically
Patent

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Attachment jib for cranes

Traversing hoists – Having vertically swinging boom – Having specific engager for load
Patent

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Crane boom extending, retracting and cooperative latching arrang

Static structures (e.g. – buildings) – Mechanism operated relatively movable shaft assembly – Fluid pressure actuated
Patent

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Profile ID: LFUS-PAI-P-1066316

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