| 摘要 |
An electromagnetic lock includes a mounting plate for attaching to a supporting device and the mounting plate includes one or more protrusions each having a screw hole, a housing includes one or more passages aligned with the protrusions and the screw holes of the mounting plate for quickly anchoring and positioning the housing to the mounting plate, and a fastener is engaged through each passage of the housing and engaged with the screw hole of the mounting plate for easily and quickly securing the housing to the mounting plate and for preventing the housing from being held by the user for a long time.
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