- LandOfFree
- Inventors
- Office supplies; artists and teachers materials
- Teaching material
- Sensory feedback, e.g., audio-visual teaching machine
Details
David Jeffrey Merrill
David Jeffrey
Merrill
- Patent Class
Office supplies; artists and teachers materials
- SubClass
Teaching material
- SubSubClass
Sensory feedback, e.g., audio-visual teaching machine
- Specialty
Inventor
- Status
active
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Profile ID: LFUS-PAI-P-2249936
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