an unincorporated business owned by a single person who is responsible for its liabilities and entitled to its profits
債務に対する支払い義務があり、利益を受け取る権利のある一人の人間が所有する非法人企業
proprietary
protected by trademark or patent or copyright; made or produced or distributed by one having exclusive rights; "`Tylenol' is a proprietary drug of which `acetaminophen' is the generic form"