Tag: April 15

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Things Pathfinder-tagged with 'April 15'

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April 15, 1979 - Stopping the Shipment of Bulk Fluorocarbons
from "On This Day" In Engineering History posted in General Discussion
Pathfinder Tags: aerosols April 15 CFCs chlorofluorocarbons ozone layer ...
Created on 04/15/2008 12:01 AM
by Steve Melito
Leonardo da Vinci
from Great Engineers & Scientists posted in General Discussion
Pathfinder Tags: April 15 May 2
Created on 02/22/2006 11:50 AM
by Chris Leonard
2 matches

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