resister专利名称：Loading and bridge ramp for pick-up trucks 发明人：Orestes Estevez, Jr
申请号：US07/953159
reasonable
申请日：19920929
公开号：US05287579A
蒙语翻译公开日：
杭州学前端
well是什么意思
19940222
专利内容由知识产权出版社提供
摘要：A ramp for loading a pick-up truck that is collapsable so that it can be transported and stored in a minimum space. The ramp is removably mounted to the rear tail gate of a pick up truck. The ramp includes three contiguously hingedly connected rectangular flat members that open or distend with their planes at predetermined angles with respect to each other. This is accomplished by sharing the load placed on said flat members between the shear on the hinge asmblies and the angled abutting edges compression load. The shaft of one of the hinge asmblies extends and a handle member is mounted thereon for prompt manipulation of the ramp.
建筑安全技术与管理申请人：ESTEVEZ, JR; ORESTES
cheryl cole
代理人：J. Sanchelima
conveyer更多信息请下载全文后查看
tiredness>怎样有效去除色斑
