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NTIS 바로가기국가/구분 | United States(US) Patent 등록 |
---|---|
국제특허분류(IPC7판) |
|
출원번호 | US-0611343 (2003-06-30) |
우선권정보 | TW-0202488 (2003-02-14) |
발명자 / 주소 |
|
인용정보 | 피인용 횟수 : 14 인용 특허 : 3 |
A cleaning device includes a rod having a frame connected to an end thereof and a connection member is connected to two assist plates which movably extend through the frame and pivotably connected to a pull handle on the rod. Two boards are pivotably connected to two sides of the connection member a
1. A cleaning device comprising:a rod having a frame connected to an end thereof and two assist plates movably extending through the frame, the frame having an open end and two grooves defined in each of two insides of the frame, two respective first ends of the two assist plates pivotably connected
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