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.
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
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