A friction rail skate comprising a base having a guide portion for supporting and steering along a rail and a tongue where the base is detachably connected to the tongue.
申请公布号
US8567571(B1)
申请公布日期
2013.10.29
申请号
US20110984510
申请日期
2011.01.04
申请人
NEFF SCOTT EDWARD;LOCKRIDGE JERRY L.;SCOTT WENDELL M.;L&M PATTERN MANUFACTURING COMPANY, INC.
发明人
NEFF SCOTT EDWARD;LOCKRIDGE JERRY L.;SCOTT WENDELL M.
