专利名称：LIGHT SOURCE PROJECTING LINES
DEFINING ACTIVITY AREA
发明人：Steven D. Vogt申请号：US13222271申请日：20110831
公开号：US20120065006A1公开日：20120315
专利附图：
摘要：An apparatus has a housing, a connector, and a light source connected to thehousing. The light source projects lines that define an area for an activity, such as playinga game. The connector connects the housing to a structure used in the activity or game.
申请人：Steven D. Vogt
地址：Mendon NY US
国籍：US
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