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Device for winding and unwinding a rope on a spool core

B - Operations – Transporting – 66 – D
Patent

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Device in rope hoists for limiting speed when lowering a load

B - Operations – Transporting – 66 – D
Patent

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Device with adjustable turn-shifting blades for laying and...

B - Operations – Transporting – 66 – D
Patent

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Differential drive-cable winding means

B - Operations – Transporting – 66 – D
Patent

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Differential interlock for a yarder or skidder

B - Operations – Transporting – 66 – D
Patent

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Direct drive deck winch

B - Operations – Transporting – 66 – D
Patent

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Direct drive hydraulic wireline winch assembly

B - Operations – Transporting – 66 – D
Patent

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Disconnect clutch assembly for winch drum

B - Operations – Transporting – 66 – D
Patent

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Displacement control system for hoist apparatus

B - Operations – Transporting – 66 – D
Patent

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Diving bell handling system and method

B - Operations – Transporting – 66 – D
Patent

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Double drum scraper haulage gear

B - Operations – Transporting – 66 – D
Patent

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Double-drum winch

B - Operations – Transporting – 66 – D
Patent

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Double-drum winch

B - Operations – Transporting – 66 – D
Patent

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Double-drum winch

B - Operations – Transporting – 66 – D
Patent

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Double-drum winch

B - Operations – Transporting – 66 – D
Patent

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Drawworks

B - Operations – Transporting – 66 – D
Patent

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Drawworks

B - Operations – Transporting – 66 – D
Patent

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Drive assembly

B - Operations – Transporting – 66 – D
Patent

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Drive assembly and apparatus for hoist

B - Operations – Transporting – 66 – D
Patent

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Drive for mine friction hoist

B - Operations – Transporting – 66 – D
Patent

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