| 摘要 |
1,169,062. Excavator buckets. CATERPILLAR TRACTOR CO. 16 June, 1967 [18 July, 1966], No. 27903/67. Heading E1F. The back wall of a loader bucket is formed with a pair of laterally spaced re-entrant chambers 24 for pivotal connections 14, 18 by which the bucket is connected to lift and tilt linkages carried by a tractor. |
