4. Hydraulic and earth engineering
  5. Subterranean or submarine pipe or cable laying, retrieving,...

Mark L. Boyer

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Boom mounted winch

Implements or apparatus for applying pushing or pulling force – Apparatus for hauling or hoisting load – including driven... – Device includes rotatably driven – cable contacting drum
Patent

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Boom mounted winch

Implements or apparatus for applying pushing or pulling force – Apparatus for hauling or hoisting load – including driven... – Device includes rotatably driven – cable contacting drum
Reexamination Certificate

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Materials transport and distribution apparatus

Excavating – Ditch filler
Patent

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Method for cleaning a pipe

Cleaning and liquid contact with solids – Processes – Using solid work treating agents
Patent

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Pipe rehabilitation pulling mandrel

Hydraulic and earth engineering – Subterranean or submarine pipe or cable laying – retrieving,...
Patent

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Profile ID: LFUS-PAI-P-550777

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