Blogs about: James Kempf
Featured Blog
Building a better crossbow: Patent issued to Iowa City inventor
Image via Wikipedia Abstract from U.S. Patent and Trademark Office: A crossbow having an increased powerstroke and reduced noise. The powerstroke is increased by inverting the limb orientation f… more »
Looking in at Iowa
Building a better crossbow: Patent issued to Iowa City inventor
John wrote 2 months ago: Image via Wikipedia Abstract from U.S. Patent and Trademark Office: A crossbow having an increased … more »
Have your say. Start a blog.
See our free features »
Copyright 2008 Automattic, Inc.
An 
Experiment
