发明授权
US4925064A Backpack cushioning device 失效
背包缓冲装置

Backpack cushioning device
摘要:
A cushioning device which is quickly and easily attachable/detachable to backpacks of various sizes to, thusly, substantially reduce discomfort and abrasion from objects within a backpack which otherwise would rub against the back of the user of the backpack. The device is also functional as an upper and lower body cushion for use upon the ground, chairs and the like.
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