发明名称 Template for theater lighting
摘要 A drafting template which facilitates prealignment of multiple symbols onto vertical and horizontal axes. The distance between symbols is generallly determined by a predetermined scale which is associated with the template. A grid pattern and four double rows of holes around the edge of the grid are used to place template cutouts in the proper location on the drawing, so that the symbols are drawn in the proper location. Additionally, four apertures associated with each symbol define the vertical and horizontal axis of the symbol, and four indicia, associated with each symbol, define a predetermined rotation of the template required to draw a symbol at a predetermined angle.
申请公布号 US5031333(A) 申请公布日期 1991.07.16
申请号 US19900471157 申请日期 1990.01.26
申请人 SHELLEY, STEVEN L. 发明人 SHELLEY, STEVEN L.
分类号 B43L13/20 主分类号 B43L13/20
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