economy是什么意思
专利名称：AUTOMATIC LOCKING MECHANISM FOR ENTRAINING CASTORWHEEL VEHICLES.发明人：JOSLIN, BRADLEY, D.,EDWARDS, CLARENCE, M., JR.
莱昂纳多和凯特申请号：EP94906584
补课班申请日：19940110
公开号：EP0676999A4
公开日：
pack it for me
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字典在线19961120
专利内容由知识产权出版社提供
单数
bgs摘要：An automatic locking mechanism (5, 6) is provided for enhancing the towability of castorwheel vehicles (7). The mechanism leaves the castors (2) that are proximal to the towing force to rotate, while locking the distal castors in alignment with the vehicle axis.
申请人：AMERICAN STERILIZER COMPANY
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