Protective cover for human limb joints

作者: Susan Pompa

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摘要: A removable protective cover to be fitted on the limb joints, such as elbow and heel of a patient. It forms generally "L" shape interior with one portion over fore arm upper arm. is made lambskin, having leather or skin side out receiving abrasive action from bed (or chair), in which patient confined, wool in, contact wearer's skin. secured position by quick-detachable straps that can easily manipulated semi-invalid. different sizes, for adults children, used well elbow.

参考文章(4)
Stanley George Stevens, William Patrick Herron, Knee-pad for cotton-pickers, &c. United States. Patent Office.. ,(1912)
D Alessio, Heel and ankle protector ,(1970)
Ira E Coats, Cotton-picker's knee pad ,(1925)