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
ZA8907914(B)
申请公布日期
1990.07.25
申请号
ZA19890007914
申请日期
1989.10.19
申请人
ESCO CORPORATION
发明人
JOHN S. KREITZBERG;HERBERT E. JONES;TERRY L. BRISCOE
