Comments on: Invention Timeline - Horace Parnell Tuttle, American Astronomer; Invented in 1857 a Method of Inserting a Steel Rifled Cord Into a Brass or Iron Cannon Which Was Adapted by European Countries

Comments on: Invention Timeline - Horace Parnell Tuttle, American Astronomer; Invented in 1857 a Method of Inserting a Steel Rifled Cord Into a Brass or Iron Cannon Which Was Adapted by European Countries http://www.inventioninfo.info/logfiles/372/invention-timeline-horace-parnell-tuttle-american-astronomer-in-1857-invented-a-method-of-inserting-a-steel-rifled-cord-into-a-brass-or-iron-cannon-which-was-adapted-by-european-countries Invention timeline, news, and information. Wed, 19 Nov 2008 17:53:14 +0000 http://wordpress.org/?v=2.0