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Safety device for cable climbers, hoists and winches

Handling: hand and hoist-line implements – Grapple – Well type
Patent

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Selectively releasable overshot and pull tool

Handling: hand and hoist-line implements – Grapple – Well type
Patent

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Self locking coupling mechanism for engaging and moving a load

Handling: hand and hoist-line implements – Grapple – Well type
Patent

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Setting and retrieval device for down-hole equipment

Handling: hand and hoist-line implements – Grapple – Well type
Patent

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Shear device for well service tools

Handling: hand and hoist-line implements – Grapple – Well type
Patent

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Shifting apparatus

Handling: hand and hoist-line implements – Grapple – Well type
Patent

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Simple tooling exchange

Handling: hand and hoist-line implements – Grapple – Well type
Patent

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Soft set running tool

Handling: hand and hoist-line implements – Grapple – Well type
Patent

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Spear fishing tool

Handling: hand and hoist-line implements – Grapple – Well type
Patent

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Spear head assembly

Handling: hand and hoist-line implements – Grapple – Well type
Patent

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Spear head overshot for use in a cable guided fishing assembly

Handling: hand and hoist-line implements – Grapple – Well type
Reexamination Certificate

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Spear head overshot for use in a cable guided fishing assembly

Handling: hand and hoist-line implements – Grapple – Well type
Reexamination Certificate

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Split cable grip closure and method of forming same

Handling: hand and hoist-line implements – Grapple – Well type
Patent

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Subsurface conduit setting and pulling tool

Handling: hand and hoist-line implements – Grapple – Well type
Patent

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Suspended material handling unit

Handling: hand and hoist-line implements – Grapple – Well type
Patent

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