4. Machine element or mechanism
  5. Gearing
  6. Toothed gear and recirculated unconnected elements

Gerald N. O'Berto

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Barrier operator system

Movable or removable closures – With operator for movably mounted closure – Operator drives closure along guide
Patent

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Pulley drive control system

Machine element or mechanism – Gearing – Toothed gear and recirculated unconnected elements
Patent

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Three phase a.c. motor drive system

Electricity: motive power systems – Motor-reversing – Armature or primary circuit control
Patent

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Profile ID: LFUS-PAI-P-892110

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