- LandOfFree
- Inventors
- Fire escape, ladder, or scaffold
- Scaffold external of shaft
Details
Barry A. Ehrenfried, Sr.
Barry A.
Ehrenfried, Sr.
- Patent Class
Fire escape, ladder, or scaffold
- SubClass
Scaffold external of shaft
- Specialty
Inventor
- Status
active
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Profile ID: LFUS-PAI-P-2717442
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