Inventor

PIWKO JR ROBERT DAVID

US3 patents

Patents

3 patents

US6811217B2Nov 2, 2004

Rocker device

MATTEL INC92 citations96

USD491736SJun 22, 2004

Rocker device

MATTEL INC20 citations91

USD480884SOct 21, 2003

Rocker device

MATTEL INC30 citations91