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Derrick K. Barr
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Crofton, NE, US
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Patents Grants
last 30 patents
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Patent Grant
Rail car extension system
Patent number
8,141,498
Issue date
Mar 27, 2012
Derrick K. Barr
B61 - RAILWAYS
Patents Applications
last 30 patents
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Patent Application
RAIL CAR EXTENSION SYSTEM
Publication number
20090260538
Publication date
Oct 22, 2009
Shur Company
Christopher Joseph McCallum
B61 - RAILWAYS