| 摘要 |
<p>854,982. Combined trolleys and step ladders. CARPENTER, H. J., and DAVIS, J. H. June 1, 1959 [March 3, 1958], No. 6731/58. Class 20(2) [Also in Group XXXII] A combined trolley and step ladder comprises a frame 1, having cross members 2 forming rungs, to which is pivoted at 15 a platform 8 which can be swung out to form the ladder back rest or lie on the frame 1 to support goods when these are carried and the trolley runs on wheels 7. Loops 4 having tread pieces 14, form legs for the trolley and have a platform 13 for use when the trolley is used as a ladder.</p> |
