发明名称 Waterblown foam base
摘要 A waterblown urethane foam base having a flat seat portion and a raised front portion with angularly directed valleys and a raised pommel. The area beneath the front portion is made more flexible and reduced in weight and is defined by a series of hollowed out areas separated by ribs which support the top surface of the front portion along with the front and side walls of the front portion.
申请公布号 US5317773(A) 申请公布日期 1994.06.07
申请号 US19920975848 申请日期 1992.11.13
申请人 GRAEBE, ROBERT H. 发明人 GRAEBE, ROBERT H.
分类号 A47C7/18;A47C7/02;A47C27/00;A47C27/18;A61G5/10;A61G7/057;(IPC1-7):A47C7/18 主分类号 A47C7/18
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