发明名称 |
DETACHABLE WRITING SURFACE FOR DIRECTOR{40 S CHAIR |
摘要 |
A writing board carries two members of L-shaped cross section that define a channel for accommodating the arm of a director's chair with the space between the two members accommodating a vertical post of the chair.
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申请公布号 |
US3751108(A) |
申请公布日期 |
1973.08.07 |
申请号 |
USD3751108 |
申请日期 |
1971.05.07 |
申请人 |
CAMBRIDGE SEVEN ASS INC,US |
发明人 |
BAKANOWSKY L,US |
分类号 |
A47C7/68 |
主分类号 |
A47C7/68 |
代理机构 |
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代理人 |
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主权项 |
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地址 |
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