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Pencil case
A pencil case or pencil box is a container used to store pencils. A pencil case can also contain a variety of other stationery such as sharpeners, pens, glue sticks, erasers, scissors and rulers.
Pencil cases can be made from a variety of materials such as wood or metal. Some pencil cases have a hard and rigid shell encasing the pens inside while others use a softer material such as plastic, leather or cotton. Soft versions are typically fastened with a zipper. Decorated versions are popular with schoolchildren depending on age and gender.
Early pencil cases were round or cylindrical in shape. Some early pencil cases were decorated with jasper (one from 1860) or platinum (from 1874). In 1946, the first patent for pencil case was placed in the United States. This patent was made by Verona Pearl Amoth. He also invented many other related inventions. For example, he invented replaceable erasers for pencils.
==References==
抄文引用元・出典: フリー百科事典『 ウィキペディア（Wikipedia）』
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