Inventor

CAMPBELL DOUGLAS D

US3 patents

Patents

3 patents

US4293604AOct 6, 1981

Flocked three-dimensional network mat

MINNESOTA MINING & MFG840 citations95

US4190550AFeb 26, 1980

Soap-filled pad

MINNESOTA MINING & MFG82 citations92

US4587148AMay 6, 1986

Flocked floor mat with foraminous layer

MINNESOTA MINING & MFG18 citations71