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Leadholder or Related Patent Thumbnail Index |
 http://leadholder.com/pat-us02298555-1939-tec.html |
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date of application date granted inventor assignee patent holder country |
1939 September 25 1942 October 13 Charles R. Fargo – United States |
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| patent employed on |
 TEC Drafting Pencil |
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| original content, images, layout and design © 2001 to 2010 Dennis B. Smith | more info... | ▲ top | ||
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