4. Handling: hand and hoist-line implements
  5. Grapple
  6. Pivoted jaws

William E. Douglas

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Barrier lifter

Handling: hand and hoist-line implements – Grapple – Pivoted jaws
Reexamination Certificate

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Concrete pipe lifting apparatus

Handling: hand and hoist-line implements – Grapple – Pivoted jaws
Patent

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Highway work zone intrusion alarm system

Communications: electrical – Vehicle detectors – With pneumatic
Patent

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Profile ID: LFUS-PAI-P-1476555

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