4. Pipes and tubular conduits
  5. End protectors
  6. Threaded

Harlo W. Janzen

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Handles for slips used on drilling rigs

Handling: hand and hoist-line implements – Grapple – Socket and slip wedge
Patent

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Pipe thread protector apparatus

Pipes and tubular conduits – End protectors – Threaded
Patent

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Pipe thread protector device

Pipes and tubular conduits – End protectors – Threaded
Patent

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Power tongs

Tools – Wrench – screwdriver – or driver therefor – Machine
Patent

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Reel mounting apparatus

Winding – tensioning – or guiding – Coil holder or support – Spool or core
Patent

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Profile ID: LFUS-PAI-P-300641

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