铢两相称
专利名称：Feline litter box 发明人：Dean Silver
元宵短信申请号：US08/997336
申请日：19971224
公开号：US05988108A
信任的意思公开日：
鼻骨宽
樱花草的花语
19991123
柳色新
冯骥才散文专利内容由知识产权出版社提供
摘要：There is provided a ventilation asmbly unit for a feline litter box. The unit compris a housing containing a fan at the ba thereof. A filtering medium is contained in a canister adapted for removal and inrtion within the housing. The filtering medium compris, in combination, an air dispersing mesh covered with a layer of particulate carbon.
申请人：SILVER; DEAN
十一月开什么花
代理人：Terry M Gernstein
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