Invention Grant
US09402452B2 Method of making a smartphone case with a battery 有权
用电池制作智能手机外壳的方法

Method of making a smartphone case with a battery
Abstract:
A case for a smartphone electronic device protects and extends the battery life of the smartphone. The case has a first case portion and a second case portion, which assemble together to protect the top, side, and bottom edges of the smartphone. The lower case portion includes a battery to extend the battery life of the electronic device.
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