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| ◄ | Non-Drafting Leadholder Gallery Index |  http://leadholder.com/lh-non-fc-9603.html#9603-tekagraph |
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purpose lead diameter mechanism composition variations production date origin |
sketching 2 mm pushbutton spring clutch plastic grip, metal shank and mechanics none c. 1960 Germany |
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| see also | US Patent 3,094,102 "Lead Holder or the Like," 1959 |
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purpose lead diameter mechanism composition variations production date origin |
sketching 2 mm pushbutton spring clutch plastic grip, metal shank and mechanics none c. 1960 Germany |
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| see also | US Patent 3,094,102 "Lead Holder or the Like," 1959 |
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| original content, images, layout and design © 2001 to 2010 Dennis B. Smith | more info... | ▲ top | ||
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