| 摘要 |
PROBLEM TO BE SOLVED: To provide a remote controlled drain plug opening/closing device not requiring a release wire, electric wiring and their installation work and capable of being easily installed and further retrofitted by simplifying the complicated structure resulting from ensuring insulation, sealing performance and the like. SOLUTION: The remote controlled drain plug opening/closing device has a drive section for vertically moving a drain plug and a power source buried in the drain plug, and can open/close a drain port by wireless remote control. COPYRIGHT: (C)2008,JPO&INPIT
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