Transparent Drawing Board
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A device used to transfer drawing onto opaque paper using bright tin, two showcase lamps, and plate glass. The drawings can be copied in pencil on heavy paper or Bistrol—board.
Keywords
tracing, copying, duplication, Mechanical Drawing Tools, Transparent Drawing Board, Drawing Board Copier, Transparent Copying Apparatus, Duplicating ApparatusGalleries
Mechanical Drawing ToolsSource
French, Thomas E A Manual of Engineering Drawing for Students and Draftsmen (New York, NY: McGraw-Hill, 1911)
Downloads
2400×905, 351.0 KiB
1024×386, 75.9 KiB
640×241, 40.3 KiB
320×120, 14.6 KiB