본 발명은 엘리베이터의 안전한 승하차유도를 위한 (편광)안전유도마커
Elevater's safe boarding and disembarking guidance Polarized safety marker
엘리베이터의탑승자, 하차자의안전을위한안전유도마커
2025-05-28
Patent
Electronic Resource
Korean
IPC: | B66B Aufzüge , ELEVATORS |
European Patent Office | 2023
|European Patent Office | 2021
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