| 摘要 |
1287842 Dead-ends PREFORMED LINE PRODUCTS CO 3 June 1970 [3 June 1969] 26818/70 Heading D1T The dead-end shown is made from a plurality of pre-formed helical rods and is characterized in that the bight portion 11' is twisted into a lay in an angular direction opposite to that of its legs 13' and 15'. Various methods of causing the helical rods to assume this change of lay are described. |
