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2024
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Invention
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Switching device for delayed unlocking function.
A switching device for delayed unlocking functi... |
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Invention
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Narrow-type door-lock driving device.
A narrow-type door-lock driving device, disposed at a sect... |
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Invention
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Narrow-type door-lock driving device with electronically controlled switching status.
A narrow-t... |
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Invention
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Automatic-alarming push-down type emergency door-locking device.
An automatic-alarming push-down... |
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Invention
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Delayed unlocking push-down type emergency door-locking device.
A delayed unlocking push-down ty... |
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2023
|
Invention
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Unlocking transmission mechanism for electric control system of emergency exit door lock and mult... |
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2022
|
Invention
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Cross bar type unlock-driving structure. A cross bar type unlock-driving structure, to be mounted... |
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Invention
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Universal adaptor for door handle.
A universal adaptor for door handle, operable to be universal... |
