- LandOfFree
- Inventors
- Fire escape, ladder, or scaffold
- Wall- or floor-attached
- Independent rung or step
Details
Roy J. Johnson
Roy J.
Johnson
- Patent Class
Fire escape, ladder, or scaffold
- SubClass
Wall- or floor-attached
- SubSubClass
Independent rung or step
- Specialty
Inventor
- Status
active
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Profile ID: LFUS-PAI-P-1435271
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