The Leadhead's Pencil Blog
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Showing posts with label
Eagle 1899 patent
.
Show all posts
Showing posts with label
Eagle 1899 patent
.
Show all posts
Wednesday, May 12, 2021
A Victorian Hoard (Part Two)
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This article has been included in The Leadhead's Pencil Blog Volume 7, now available here . If you don't want the book but you enjo...
Saturday, April 6, 2013
Now Was That So Hard?
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I’m a little obsessed with patents. Whenever I run across a pencil marked only with a patent date or patent number, I get that tingly, goose...
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