发明授权
- 专利标题: Sofa bed
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申请号: US28441263申请日: 1963-05-31
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公开(公告)号: US3247526A公开(公告)日: 1966-04-26
- 发明人: ROGERS JR WALTER C
- 申请人: GEN STEEL PRODUCTS CO
- 专利权人: Gen Steel Products Co
- 当前专利权人: Gen Steel Products Co
- 优先权: US28441263 1963-05-31
- 主分类号: A47C17/23
- IPC分类号: A47C17/23