发明名称 Trolley with improved telescopic tubes
摘要 A trolley with improved telescopic tubes. A main frame has a pair of wheels and a support frame attached to a bottom thereof. The main frame is characterized by three pairs of telescoping tubes with a handle at a top thereof maintaining the pair of tubes in a spaced relationship. An actuating lever is disposed near the handle and, in conjunction with a pair of actuating bars inserted through the pair of tubes, allows the pairs of tubes to telescope.
申请公布号 US5127664(A) 申请公布日期 1992.07.07
申请号 US19910766839 申请日期 1991.09.27
申请人 CHENG, CHIUN-JER 发明人 CHENG, CHIUN-JER
分类号 B62B1/12 主分类号 B62B1/12
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