- LandOfFree
- Inventors
- Electricity: magnetically operated switches, magnets, and electr
- Magnets and electromagnets
- Magnet structure or material
Details
Ethel Hartman
Ethel
Hartman
- Patent Class
Electricity: magnetically operated switches, magnets, and electr
- SubClass
Magnets and electromagnets
- SubSubClass
Magnet structure or material
- Specialty
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- Status
active
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Profile ID: LFUS-PAI-P-1090383
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