Inventor

ENGLAND BERTRUM

US2 patents

Patents

2 patents

US6726434B2Apr 27, 2004

Traffic cone setting devices for depositing traffic cones onto roadway surfaces

ILLINOIS TOOL WORKS31 citations89

US7101143B2Sep 5, 2006

Traffic cone retrieving device for removing traffic cones from roadway surfaces

ILLINOIS TOOL WORKS18 citations78