专利名称：Training and coordination device发明人：Jeremy A. Safran申请号：US13033889申请日：20110224公开号：US08523712B2公开日：20130903
专利附图：
摘要：A training and coordination device including a projectile member such as a ballor sack secured to an elastic string is described. The first end of the elastic string isattached to a location and the second end is connected to the projectile member. Atleast an end portion of the elastic string secure to the projectile member comprises
multiple strands of an odd number. The multiple strands of the elastic string in
conjunction with the elasticity of the string generate a random motion of the sack whenthe sack moves relative to the string.
申请人：Jeremy A. Safran
地址：Kaiku HI US
国籍：US
代理机构：Procopio Cory Hargreaves & Savitch LLP
代理人：Stephen C. Beuerle
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