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发明名称
Door knob-mounted air freshener device
摘要
An air freshener dispenser mechanism is incorporated into a door knob whereby when a door is pushed open, air freshener is dispensed into a room in advance of a person entering the room.
申请公布号
US6997394(B1)
申请公布日期
2006.02.14
申请号
US20040957023
申请日期
2004.10.04
申请人
WASHINGTON EVIE
发明人
WASHINGTON EVIE
分类号
B05B15/00
主分类号
B05B15/00
代理机构
代理人
主权项
地址
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