A spring unit for a core pin assembly for use in molding and die casting apparatus which can be installed in and removed from a mold section as a single unit.
申请公布号
US6145578(A)
申请公布日期
2000.11.14
申请号
US19980134979
申请日期
1998.08.17
申请人
ZEARBAUGH, WAYNE C.
发明人
ZEARBAUGH FRANCIS E.;WEBB, HEIR, BY LUCINDA PAULINE;ZEARBAUGH, HEIR, BY SCOTT RICHARD;ZEARBAUGH, HEIR, BY DARLENE K.;ZEARBAUGH, LEGAL REPRESENTATIVE, BY WAYNE CLAYTON
