Membership
Tour
Register
Log in
Willi Preu
Follow
Person
Dubuque, IA, US
People
Overview
Industries
Organizations
People
Information
Impact
Patents Grants
last 30 patents
Information
Patent Grant
Panel holding structure
Patent number
3,982,371
Issue date
Sep 28, 1976
Scovill Manufacturing Company
Willi Preu
E06 - DOORS, WINDOWS, SHUTTERS, OR ROLLER BLINDS IN GENERAL LADDERS