4. Education and demonstration
  5. Audio recording and visual means

Louis Tubman

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Acoustical prompt recording system and method

Education and demonstration – Audio recording and visual means
Patent

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Brush

Brushware – Bristled – Bristles at one end of handle only
Patent

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Brush with rotary head

Brushing – scrubbing – and general cleaning – Implements – Brush or broom
Reexamination Certificate

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Multipurpose brush

Brushing – scrubbing – and general cleaning – Implements – Brush or broom
Reexamination Certificate

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Sound recording

Education and demonstration – Audio recording and visual means
Patent

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Profile ID: LFUS-PAI-P-513725

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