4. Electricity: motive power systems
  5. Induction motor systems
  6. Primary circuit control

David L. Williamson

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Crane wheel puller

Handling: hand and hoist-line implements – Hoistline attached load supporting frame – Load leveling or shifting
Patent

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Digital power optimization system for AC induction motors

Electricity: motive power systems – Induction motor systems – Primary circuit control
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Digital power optimization system for polyphase AC induction mot

Electricity: motive power systems – Induction motor systems – Primary circuit control
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Vinyl siding panels for building exteriors

Static structures (e.g. – buildings) – Lapped multiplanar surfacing; e.g. – shingle type – Interfitted sections
Patent

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Profile ID: LFUS-PAI-P-908868

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