- LandOfFree
- Inventors
- Fire escape, ladder, or scaffold
- Means maintaining platform level on angularly movable support
- Swingable support
Details
David F. Grabner
David F.
Grabner
- Patent Class
Fire escape, ladder, or scaffold
- SubClass
Means maintaining platform level on angularly movable support
- SubSubClass
Swingable support
- Specialty
Inventor
- Status
active
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Profile ID: LFUS-PAI-P-1915579
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