Membership
Tour
Register
Log in
Brett Balk
Follow
Person
Sioux Falls, SD, US
People
Overview
Industries
Organizations
People
Information
Impact
Patents Grants
last 30 patents
Information
Patent Grant
Overhead door spring shield system
Patent number
5,671,500
Issue date
Sep 30, 1997
Brett Balk
E05 - LOCKS KEYS WINDOW OR DOOR FITTINGS SAFES