- LandOfFree
- Inventors
- Fire escape, ladder, or scaffold
- Ladder
- Slidable nested single rung units
Details
Norman William Liefke
Norman William
Liefke
- Patent Class
Fire escape, ladder, or scaffold
- SubClass
Ladder
- SubSubClass
Slidable nested single rung units
- Specialty
Assignee
- Status
active
Affiliated with
No affiliations
Also associated with
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Profile ID: LFUS-PAI-P-3132443
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