发明名称 Recycling bird seed feeder
摘要 A bird feeder includes a housing containing a bird food hopper. The hopper feeds food into a tray. The tray is sandwiched between a roof and a floor, both of which extend outwardly from the tray to define a restricted vertical clearance duct for birds attempting access to the tray. Vertical partitions between the roof and floor define a restricted width clearance thereby forming a restricted clearance passageway to the tray between adjacent partitions and the corresponding roof and floor.
申请公布号 US7654225(B2) 申请公布日期 2010.02.02
申请号 US20070984056 申请日期 2007.11.13
申请人 MADSEN BENT N;VEENHOF PHIL 发明人 MADSEN BENT N.;VEENHOF PHIL
分类号 A01K39/01 主分类号 A01K39/01
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