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Coupling and latching mechanism for extensible boom

Traversing hoists – Having vertically swinging boom – Extensible by movement of boom or boom segment along...
Patent

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Crane

Traversing hoists – Having vertically swinging boom – Extensible by movement of boom or boom segment along...
Patent

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Crane boom top plate lateral support

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

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Crane having a multi-section boom

Traversing hoists – Having vertically swinging boom – Having means to swing boom vertically
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Crane having boom rest

Traversing hoists – Having vertically swinging boom
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Cranes

Traversing hoists – Having vertically swinging boom
Patent

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Device for maintaining a tool attachment in a knuckle boom crane

Traversing hoists – Having vertically swinging boom – And compensating means to maintain horizontal movement of load
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Device of the kind comprising at least three movably co-ordinate

Traversing hoists – Having vertically swinging boom – Having means to swing boom vertically
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Double link level luffing crane

Traversing hoists – Having vertically swinging boom – And compensating means to maintain horizontal movement of load
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Endless chain drive for telescopic jib sections

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

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Engine hoist and support apparatus

Traversing hoists – Having vertically swinging boom – And trolley
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Excavator boom derrick

Traversing hoists – Having vertically swinging boom – And trolley
Patent

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Extensible boom for cranes

Traversing hoists – Having vertically swinging boom – Extensible by movement of boom or boom segment along...
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Extensible boom with manual section stored in base

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

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External pendant pay-out system with anti-droop control

Traversing hoists – Having vertically swinging boom – Extensible by movement of boom or boom segment along...
Patent

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External pendant pay-out system with anti-droop control

Traversing hoists – Having vertically swinging boom – Extensible by movement of boom or boom segment along...
Patent

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Fail-safe stop arrangement for crane boom extension cable

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

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Furnace delining apparatus

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

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Height-adjustable hoist

Traversing hoists – Having vertically swinging boom
Patent

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Hoisting means including constant tension hoist wire

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

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