4. Office supplies; artists and teachers materials
  5. Teaching material
  6. Sensory feedback, e.g., audio-visual teaching machine

Brian Mehler

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Calculator

Printing and office machinery – Typewriter or calculator – Calculator
Design Patent

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Calculator

Printing and office machinery – Typewriter or calculator – Calculator
Design Patent

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Earpiece light

Illumination – Self powered lamp – With support
Reexamination Certificate

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Earpiece light

Illumination – Self powered lamp – With support
Reexamination Certificate

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Earpiece light

Illumination – Self powered lamp – With support
Reexamination Certificate

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Profile ID: LFUS-PAI-P-1479026

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