4. Expansible chamber devices
  5. Moving cylinder

John L. Hockensmith

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Channel and plate telescopic crane boom

Traversing hoists – With haul-in line
Patent

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Outrigger beam and jack construction

Expansible chamber devices – Moving cylinder
Patent

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Telescopic boom construction

Traversing hoists – Having vertically swinging boom – Having means to swing boom vertically
Patent

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Vehicle suspension and steerage system

Land vehicles – Body elevation or tilt – Establishing riding or trim height
Patent

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Profile ID: LFUS-PAI-P-849870

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