| 摘要 |
<p>834,418. Folding stands. I.R.S. Ltd. May 3, 1957 [May 3, 1956], No. 13735/56. Class 52(3) [Also in Group XVIII] In a portable road sign comprising a base 13 which is channelled to receive a removable sign or is provided with rivet holes or screwthreaded holes 16, 17 for positioning the sign, the base is mounted on two relatively rotatable truncated V-shaped legs formed from flat strips of metal or light weight tubes.</p> |
