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Traversing hoists – Having boom shiftable vertically along a linear path
Patent

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Actuator for telescopic boom

Traversing hoists – With haul-in line
Patent

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Actuator linkage for mobile derricks and the like

Traversing hoists – Overhead – Cable
Patent

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Adjustable boom for material handling implement

Traversing hoists – Overhead – Cable
Patent

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Adjustable double link mounting

Traversing hoists – Having counterweight or counterbalancing means – Counterweight movable relative to load support
Patent

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Adjustable expansible load lifting device

Traversing hoists – Traveling bridge – Having vertical supporting legs
Patent

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Adjustable jib crane

Traversing hoists – Overhead – Cable
Patent

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Adjustable load lifting device

Traversing hoists – Overhead – Surface vehicle
Patent

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Adjusting means

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

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Aerial boom with tensiometer

Traversing hoists – With haul-in line
Patent

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Air transportable gantry type crane

Traversing hoists – Having means facilitating assembly or disassembly
Patent

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Alignment system for crane works and method of alignment

Traversing hoists – Having means facilitating assembly or disassembly – Of traversing hoist from support
Patent

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Angle-of-heel control means for a floating crane

Traversing hoists – With haul-in line
Patent

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Anti-lowering device for a boom loader

Traversing hoists – Overhead – Cable
Patent

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Anti-sway control of a crane under operator's command

Traversing hoists – Having means to prevent or dampen load oscillations – Antisway
Reexamination Certificate

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Anti-sway control system for cantilever cranes

Traversing hoists – Having means to prevent or dampen load oscillations – Antisway
Patent

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Anti-sway crane reeving apparatus

Traversing hoists – With haul-in line
Patent

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Anti-sway crane reeving apparatus

Traversing hoists – With haul-in line
Patent

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Anti-sway crane reeving apparatus

Traversing hoists – With haul-in line
Patent

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Anti-sway hydraulic system for grappler

Traversing hoists – Having means to prevent or dampen load oscillations – Antisway
Reexamination Certificate

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