| 摘要 |
1373669 Removing weld flash CATERPILLAR TRACTOR CO 24 Jan 1972 [28 Jan 1971] 51968/73 Divided out of 1373668 Heading B3L The subject matter of this Specification is substantially the same as that described in Specification 1,373,668, but the claims are concerned with the flash removing mechanism per se. |
