发明名称 Squirrel -proof sunflower seed bird feeder
摘要 A squirrel-proof sunflower seed bird feeder is provided which denies feeding access to squirrels by way of a unique connection system between an inner housing member and an outer housing member of the bird feeder.
申请公布号 US2010288201(A1) 申请公布日期 2010.11.18
申请号 US20090454335 申请日期 2009.05.15
申请人 LUSH RAYMON W 发明人 LUSH RAYMON W.
分类号 A01K39/01;A01K5/01 主分类号 A01K39/01
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