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Non-Drafting Leadholder Thumbnail Index |
direct link http://www.leadholder.com/lh-non-fc-9603.html |
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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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< |
Non-Drafting Leadholder Thumbnail Index |
direct link http://www.leadholder.com/lh-non-fc-9603.html |
^ top |
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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 |
| © 2001 to 2008 Dennis B. Smith |
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