| 摘要 |
A cover plate having a back surface defining a covered M groove is presented. The cover plate M groove is hooked over one screw of an electrical wiring device. The second screw then screws into the cover plate and sits deep in the cover plate screw groove. A decorative cover or plug then covers the second screw, so that no screw shows on the front surface farthest from the wall after installation and the cover plate is securely coupled to the wall by the installation of only one mounting screws, rather than two as required by prior art cover plates.
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