Inventor

WARGO JAMES A

3 patents

Patents

3 patents

USD336346SJun 8, 1993

Collapisble bollard

UNIV PENNSYLVANIA70 citations94

USD324920SMar 24, 1992

Collapsible bollard

UNIV PENNSYLVANIA24 citations90

US5018902AMay 28, 1991

Collapsible bollards

UNIV PENNSYLVANIA26 citations90