A tooth point (10') having key slots top and bottom wherein the rear walls of the slots (16',17') are outwardly convergent relative to the front walls to permit receipt of a curved locking pin (15').
申请公布号
PH25832(A)
申请公布日期
1991.11.05
申请号
PH19910000393
申请日期
1989.10.20
申请人
ESCO CORPORATION
发明人
JOHN S. KREITZBRG;HERBERT E. JONES;TERRY L. BRISCOE
