| 摘要 |
In, as part of, or for apparatus to discharge, or to receive a discharge of, a particulate material, (A) a tube, conduit, duct or the like and (B) a flexible tube end received and snap fit inter-engaged within said tube, conduit, duct or the like. The snap fit is of a pair of outward circumferential forms each into a complementary receiving groove of a ferrule. |
