Back support for automobiles-back saver
作者： Pasquarelli Blase
DOI:
关键词: Aeronautics 、 Engineering 、 Back support
摘要:
lens.org 参考文章(2)
Florence L Gailey, Adjustable seat back cushion ,(1934)
Herman H Eichorst, Portable head and back rest ,(1953)