Invention Grant
US08219167B2 Protective envelope and related portable electronic device combination 有权
保护信封和相关的便携式电子设备组合

Protective envelope and related portable electronic device combination
Abstract:
An exemplary protective envelope for a portable electronic device includes a hollow main body and a cleaning roller arranged in the hollow main body. The hollow main body defines therein an opening for insertion of the portable electronic device therethrough. The cleaning roller is rotatably fixed in the hollow main body.
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