- 专利标题: Electronic calculator with solar cell
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申请号: US325493申请日: 1989-03-20
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公开(公告)号: USD319252S公开(公告)日: 1991-08-20
- 设计人: Masaji Sawada , Kouji Nishida
- 申请人: Masaji Sawada , Kouji Nishida
- 申请人地址: JPX Osaka
- 专利权人: Sharp Corporation
- 当前专利权人: Sharp Corporation
- 当前专利权人地址: JPX Osaka
- 优先权: JPX63-39580 19881007
公开/授权文献
- US6155327A Counterbalance system adjustment mechanism for rollup door 公开/授权日:2000-12-05
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