| 摘要 |
1294677 Backrests W CHONG 23 Dec 1969 62640/69 Heading A4J [Also in Division A6] A medical appliance having a pair of parallel extensible armrests 11, with a backrest 14 extending between them, may be turned through 90 degrees and used as a walking aid. The backrest may be pivotted so as to swing clear of the walker's legs. The frame, when adapted as a back support, may be secured to a horizontal surface e.g. a bed or wheel chair base. |
