Ruling Pen with Clamp
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A ruling pen with clamp for easy cleaning. Ruling pens are useful in drawing with ink.
Galleries
Mechanical Drawing ToolsSource
French, Thomas E A Manual of Engineering Drawing for Students and Draftsmen (New York, NY: McGraw-Hill, 1911)
Downloads
767×2400, 183.5 KiB
327×1024, 26.4 KiB
204×640, 14.6 KiB
102×320, 5.9 KiB