Patents
2002 - Chemical milling of the blades of a gas turbine engine EP 1239059 A2
https://www.google.com/patents/EP1239059A2
Aleksandr Erminingeldovich Arbuzov born 1877: organophosphorus compounds.
Carl Shipp ("Speed") Marvel born 1894: organic chemist; polymer synthesis
Surveyor 5 lands on the moon, 1967, and begins elemental analysis of surface.
http://web.lemoyne.edu/~giunta/september.html
Knowledge History of the Day - Index for the Year
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