4. Land vehicles
  5. Skates
  6. Wheeled skate

Sherman O. Parrett

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Compact and efficient sub-woofer system and method for installat

Acoustics – Plural diaphragm sound sources
Patent

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Compact and efficient sub-woofer system and method for installat

Electrical audio signal processing systems and devices – Binaural and stereophonic – Hearing aid
Patent

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Computer controlled fins for improving seakeeping in marine vess

Ships – Displacement-type hull – Multiple hulls
Patent

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Oxidation of organic compounds in water

Liquid purification or separation – Processes – Utilizing electrical or wave energy directly applied to...
Patent

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Roller skate having three control modes

Land vehicles – Skates – Wheeled skate
Patent

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Profile ID: LFUS-PAI-P-837933

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