发明名称 |
Light box |
摘要 |
The invention relates to a light box including (a) a plurality of elongated L-shaped top sections abutted length-wise end-to-end, each of the top sections having a top flange substantially horizontally oriented and an integral back flange substantially vertically oriented; and (b) a plurality of bottom sections where the bottom sections are attached to the top sections; and (c) a single elongated translucent lens slidably secured between the outer edges of the top and bottom sections.
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申请公布号 |
US5386357(A) |
申请公布日期 |
1995.01.31 |
申请号 |
US19920985778 |
申请日期 |
1992.12.04 |
申请人 |
SHELL OIL COMPANY |
发明人 |
TRYON, JOHN F.;LEDBETTER, JENNINGS M. |
分类号 |
F21S2/00;F21S4/00;F21S8/00;F21Y103/00;(IPC1-7):F21S1/02 |
主分类号 |
F21S2/00 |
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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