4. Wells
  5. Processes
  6. Vibrating the earth or material in or being placed in the...

James R. Ligman

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Carpet cleaner unit with adjustable power control

Brushing – scrubbing – and general cleaning – Machines – With air blast or suction
Patent

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Casing tuned downhole tool

Wells – Processes – Vibrating the earth or material in or being placed in the...
Patent

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Downhole transducer systems

Wells – Processes – Vibrating the earth or material in or being placed in the...
Patent

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Entry system

Electricity: electrical systems and devices – Control circuits for electromagnetic devices – For relays or solenoids
Patent

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Motor control circuit

Electricity: motive power systems – Induction motor systems – Primary circuit control
Patent

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Profile ID: LFUS-PAI-P-79732

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