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Daniel L. Hart
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Antioch, IL, US
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Patents Grants
last 30 patents
Information
Patent Grant
Freight railroad car reflector
Patent number
7,571,685
Issue date
Aug 11, 2009
ZefTek, Inc.
Daniel L. Hart
B61 - RAILWAYS
Information
Patent Grant
Freight railroad car reflector
Patent number
D541700
Issue date
May 1, 2007
ZefTek, Inc.
Daniel L. Hart
D12 - Transportation
Information
Patent Grant
Freight railroad car reflector
Patent number
D541193
Issue date
Apr 24, 2007
ZefTek, Inc.
Daniel L. Hart
D12 - Transportation
Patents Applications
last 30 patents
Information
Patent Application
FREIGHT RAILROAD CAR REFLECTOR
Publication number
20060214503
Publication date
Sep 28, 2006
ZefTek, Inc.
Daniel L. Hart
B61 - RAILWAYS