Lowell F. Hoffman

Follow

Person

Issaquah, WA, US

People

Patents Grantslast 30 patents

Information Patent Grant
Ladder rung plug
- Patent number 8,807,281
- Issue date Aug 19, 2014
- Lowell F. Hoffman
- E06 - DOORS, WINDOWS, SHUTTERS, OR ROLLER BLINDS IN GENERAL LADDERS