发明名称 Tube bird feeder
摘要 A bird feeder for deterring squirrels and other maurders, the bird feeder having an inner feed container and an outer shroud, the spring mechanism being mounted in a center structure which comprises an outer first member having a hollow interior portion with a second plunger member mounted interiorly of the hollow member, the plunger having an upper stop member and a lower stop member with a spring mounted between the lower stop member and the base, the shroud being connected to an exteriorly extending portion of the plunger member.
申请公布号 US2006260553(A1) 申请公布日期 2006.11.23
申请号 US20060399202 申请日期 2006.04.06
申请人 COTE PAUL 发明人 COTE PAUL
分类号 A01K61/02 主分类号 A01K61/02
代理机构 代理人
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