LandOfFree - US Patents - Listing for Handling: hand and hoist-line implements,Grapple,Collar-engaging

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Link control system for use with dual elevators

Handling: hand and hoist-line implements – Grapple – Collar-engaging

Patent

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Link engaging pipe elevator

Handling: hand and hoist-line implements – Grapple – Collar-engaging

Patent

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Load lifting apparatus

Handling: hand and hoist-line implements – Grapple – Collar-engaging

Patent

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Mold balancing lifting bar

Handling: hand and hoist-line implements – Grapple – Collar-engaging

Patent

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Oil well sucker rod safety block

Handling: hand and hoist-line implements – Grapple – Collar-engaging

Patent

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Oilfield elevator

Handling: hand and hoist-line implements – Grapple – Collar-engaging

Reexamination Certificate

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Pipe elevator

Handling: hand and hoist-line implements – Grapple – Collar-engaging

Patent

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Pivotal latch for a sucker rod puller

Handling: hand and hoist-line implements – Grapple – Collar-engaging

Patent

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Pulling head for removably engaging a conduit end

Handling: hand and hoist-line implements – Grapple – Collar-engaging

Patent

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Reel lifting device

Handling: hand and hoist-line implements – Grapple – Collar-engaging

Patent

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Rod elevator insert

Handling: hand and hoist-line implements – Grapple – Collar-engaging

Patent

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Rotating head

Handling: hand and hoist-line implements – Grapple – Collar-engaging

Patent

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