| 摘要 |
PROBLEM TO BE SOLVED: To provide a door stopper keeping a hinged door opened. SOLUTION: Two flat plates are individually have screw holes and circular spring holes. Two ends of a spring arm have round rod shapes, and are horizontally opened in angular shapes. The two ends of the spring arm are inserted into the spring holes of the two flat plates and connected with the two flat plates. COPYRIGHT: (C)2008,JPO&INPIT
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