Tag: April 23

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Things Pathfinder-tagged with 'April 23'

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April 23, 1940: Batteries Included, and They Don't Leak
from Engineering News posted in General
Pathfinder Tags: April 23
Created on 04/23/2012 9:14 AM
Granville T. Woods: The Black Edison
Created on 02/19/2010 9:30 AM
by Steve Melito
April 23, 1957 – Unveiling the X-15
Created on 04/23/2008 12:01 AM
by Steve Melito
April 23, 1867 – Zoetrope is patented. PLUS Julie makes her own!
Created on 04/23/2007 9:43 AM
by julie
Max Karl Ernst Ludwig Planck
from Great Engineers & Scientists posted in General
Pathfinder Tags: April 23 October 4
Created on 04/24/2006 4:30 PM

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