- 专利标题: Wheelchair cellular cushion
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申请号: US1699申请日: 1992-11-20
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公开(公告)号: USD355558S公开(公告)日: 1995-02-21
- 设计人: Robert H. Graebe
- 申请人: Robert H. Graebe
公开/授权文献
- US5372171A Pneumatic tire with asymmetrical tread shoulders 公开/授权日:1994-12-13