| 摘要 |
1520009 Tripods HALDO DEVELOPMENTS Ltd 19 Nov 1976 [25 Nov 1975] 48357/75 Heading A4H [Also in Division El ] In a tripod support for a road sign, one leg 10 is pivoted about a rod 9 out of the plane of the other two legs 2, 3 and is retained in the erected position by a rod 7 engaging in a channel 11. |
