- LandOfFree
- Inventors
- Land vehicles
- Skates
- Wheeled skate
Details
Hjalmar S. Halvorsen
Hjalmar S.
Halvorsen
- Patent Class
Land vehicles
- SubClass
Skates
- SubSubClass
Wheeled skate
- Specialty
Inventor
- Status
active
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Profile ID: LFUS-PAI-P-960305
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