4. Electricity: electrical systems and devices
  5. Electric charging of objects or materials
  6. Particulate matter

Weidong Song

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Method of ionizing a liquid and an electrostatic colloid...

Electricity: electrical systems and devices – Electric charging of objects or materials – Particulate matter
Reexamination Certificate

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Method of ionizing a liquid propellant and an electric...

Power plants – Reaction motor – Ion motor
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Profile ID: LFUS-PAI-P-2279593

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